Let's divide 71517672 by 519
The aim is to understand the frequency of 519 in 71517672.

On to step 1:
When dividing 7 by 519, we get 0 with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 519

Moving on to step 2:
71 divided by 519 is 0 with a remainder of 71.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 71 leaves us with 71.
Append the next digit (5) from the dividend to 71 and continue with: 715 / 519

Going ahead to step 3:
When dividing 715 by 519, we get 1 with a remainder of 196.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 196 after subtracting 519 from 715.
Fetch the next digit (1) from the dividend, attach it to 196 and continue: 1961 / 519

Going ahead to step 4:
When dividing 1961 by 519, we get 3 with a remainder of 404.
Use 3 as the next digit of our solution. 
Result so far: 13.0
If we take 1557 away from 1961, we end up with 404.
Grab the next digit (7) from the dividend, add it to 404, then carry on: 4047 / 519

Let's proceed to step 5:
519 can be fit into 4047 7 times, resulting in a remainder of 414.
Use 7 as the next digit of our solution. 
Result so far: 137.0
Subtracting 3633 from 4047 leaves us with 414.
Take the next digit (6) from the dividend and append it to 414, then repeat: 4146 / 519

Let's proceed to step 6:
519 can be fit into 4146 7 times, resulting in a remainder of 513.
The number 7 becomes the next digit in our result. 
Result so far: 1377.0
Deduct 3633 from 4146 and we're left with 513.
Bring next digit (7) of the dividend behind the 513 and repeat the process: 5137 / 519

Advancing to step 7:
When dividing 5137 by 519, we get 9 with a remainder of 466.
Put 9 as the next digit of the answer. 
Result so far: 13779.0
Subtracting 4671 from 5137 leaves us with 466.
Bring next digit (2) of the dividend behind the 466 and repeat the process: 4662 / 519

Advancing to step 8:
The number 519 fits into 4662 8 times, leaving a remainder of 510.
Record the quotient 8 as the next digit in the result. 
Result so far: 137798.0
If we take 4152 away from 4662, we end up with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

On to step 9:
5100 divided by 519 is 9 with a remainder of 429.
The number 9 becomes the next digit in our result. 
Result so far: 137798.9
Subtract 4671 from 5100 to get 429.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4290, and continue the process.

Advancing to step 10:
When dividing 4290 by 519, we get 8 with a remainder of 138.
Record the quotient 8 as the next digit in the result. 
Result so far: 137798.98
Subtracting 4152 from 4290 leaves us with 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

On to step 11:
519 can be fit into 1380 2 times, resulting in a remainder of 342.
Record the quotient 2 as the next digit in the result. 
Result so far: 137798.982
If we take 1038 away from 1380, we end up with 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

Let's proceed to step 12:
519 can be fit into 3420 6 times, resulting in a remainder of 306.
The next digit of our result is 6. 
Result so far: 137798.9826
Subtract 3114 from 3420 to get 306.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3060, and continue the process.

Let's proceed to step 13:
The number 519 fits into 3060 5 times, leaving a remainder of 465.
Record the quotient 5 as the next digit in the result. 
Result so far: 137798.98265
Deduct 2595 from 3060 and we're left with 465.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4650, and continue the process.

Step 14:
519 can be fit into 4650 8 times, resulting in a remainder of 498.
Write down 8 as next digit of the result. 
Result so far: 137798.982658
Deduct 4152 from 4650 and we're left with 498.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4980, and continue the process.

On to step 15:
The number 519 fits into 4980 9 times, leaving a remainder of 309.
The number 9 becomes the next digit in our result. 
Result so far: 137798.9826589
The remainder is 309 after subtracting 4671 from 4980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3090, and continue the process.

Going ahead to step 16:
519 goes into 3090 5 times with a remainder of 495.
The number 5 becomes the next digit in our result. 
Result so far: 137798.98265895
The remainder is 495 after subtracting 2595 from 3090.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4950, and continue the process.

The final outcome is 137798.98265895, with a leftover of 4.95e-07.