51990244 ÷ 715 
The aim is to understand the frequency of 715 in 51990244.

Step 1:
The number 715 fits into 5 0 times, leaving a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 715

On to step 2:
715 can be fit into 51 0 times, resulting in a remainder of 51.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 51, we end up with 51.
Grab the next digit (9) from the dividend, add it to 51, then carry on: 519 / 715

Moving on to step 3:
715 can be fit into 519 0 times, resulting in a remainder of 519.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 519 after subtracting 0 from 519.
Grab the next digit (9) from the dividend, add it to 519, then carry on: 5199 / 715

Step 4:
The number 715 fits into 5199 7 times, leaving a remainder of 194.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we subtract 5005 from 5199, we get 194.
Fetch the next digit (0) from the dividend, attach it to 194 and continue: 1940 / 715

Advancing to step 5:
715 can be fit into 1940 2 times, resulting in a remainder of 510.
Record the quotient 2 as the next digit in the result. 
Result so far: 72.0
Subtracting 1430 from 1940 leaves us with 510.
Grab the next digit (2) from the dividend, add it to 510, then carry on: 5102 / 715

Moving on to step 6:
The number 715 fits into 5102 7 times, leaving a remainder of 97.
The number 7 becomes the next digit in our result. 
Result so far: 727.0
Subtract 5005 from 5102 to get 97.
Fetch the next digit (4) from the dividend, attach it to 97 and continue: 974 / 715

Advancing to step 7:
When dividing 974 by 715, we get 1 with a remainder of 259.
Use 1 as the next digit of our solution. 
Result so far: 7271.0
If we take 715 away from 974, we end up with 259.
Include the next digit (4) from the dividend after 259, then repeat: 2594 / 715

Moving on to step 8:
715 can be fit into 2594 3 times, resulting in a remainder of 449.
Put 3 as the next digit of the answer. 
Result so far: 72713.0
Subtract 2145 from 2594 to get 449.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4490, and continue the process.

On to step 9:
When dividing 4490 by 715, we get 6 with a remainder of 200.
Write down 6 as next digit of the result. 
Result so far: 72713.6
Deduct 4290 from 4490 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 10:
If we divide 2000 by 715, we get 2 and a remainder of 570.
The number 2 becomes the next digit in our result. 
Result so far: 72713.62
If we subtract 1430 from 2000, we get 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Let's proceed to step 11:
5700 divided by 715 is 7 with a remainder of 695.
Put 7 as the next digit of the answer. 
Result so far: 72713.627
If we subtract 5005 from 5700, we get 695.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6950, and continue the process.

Going ahead to step 12:
715 goes into 6950 9 times with a remainder of 515.
The number 9 becomes the next digit in our result. 
Result so far: 72713.6279
Subtracting 6435 from 6950 leaves us with 515.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5150, and continue the process.

Let's proceed to step 13:
5150 divided by 715 is 7 with a remainder of 145.
Record the quotient 7 as the next digit in the result. 
Result so far: 72713.62797
Subtract 5005 from 5150 to get 145.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1450, and continue the process.

On to step 14:
715 goes into 1450 2 times with a remainder of 20.
Put 2 as the next digit of the answer. 
Result so far: 72713.627972
Subtract 1430 from 1450 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 15:
If we divide 200 by 715, we get 0 and a remainder of 200.
Use 0 as the next digit of our solution. 
Result so far: 72713.627972
Subtract 0 from 200 to get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Let's proceed to step 16:
If we divide 2000 by 715, we get 2 and a remainder of 570.
Record the quotient 2 as the next digit in the result. 
Result so far: 72713.62797202
Deduct 1430 from 2000 and we're left with 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

The final result is 72713.62797202 with a remainder of 5.7e-07.