521998 divided by 71 
The aim is to understand the frequency of 71 in 521998.

Let's proceed to step 1:
The number 71 fits into 5 0 times, leaving a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 71

Step 2:
When dividing 52 by 71, we get 0 with a remainder of 52.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 52 leaves us with 52.
Append the next digit (1) from the dividend to 52 and continue with: 521 / 71

Let's proceed to step 3:
71 goes into 521 7 times with a remainder of 24.
Use 7 as the next digit of our solution. 
Result so far: 7.0
The remainder is 24 after subtracting 497 from 521.
Include the next digit (9) from the dividend after 24, then repeat: 249 / 71

Advancing to step 4:
When dividing 249 by 71, we get 3 with a remainder of 36.
Put 3 as the next digit of the answer. 
Result so far: 73.0
If we subtract 213 from 249, we get 36.
Take the next digit (9) from the dividend and append it to 36, then repeat: 369 / 71

On to step 5:
369 divided by 71 is 5 with a remainder of 14.
The next digit of our result is 5. 
Result so far: 735.0
If we take 355 away from 369, we end up with 14.
Include the next digit (8) from the dividend after 14, then repeat: 148 / 71

Let's proceed to step 6:
71 can be fit into 148 2 times, resulting in a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 7352.0
The remainder is 6 after subtracting 142 from 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 7:
71 goes into 60 0 times with a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 7352.0
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 8:
71 can be fit into 600 8 times, resulting in a remainder of 32.
Write down 8 as next digit of the result. 
Result so far: 7352.08
If we subtract 568 from 600, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 9:
If we divide 320 by 71, we get 4 and a remainder of 36.
Use 4 as the next digit of our solution. 
Result so far: 7352.084
Subtract 284 from 320 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Step 10:
The number 71 fits into 360 5 times, leaving a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 7352.0845
Deduct 355 from 360 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 11:
The number 71 fits into 50 0 times, leaving a remainder of 50.
Put 0 as the next digit of the answer. 
Result so far: 7352.0845
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 12:
71 goes into 500 7 times with a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 7352.084507
Deduct 497 from 500 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 13:
The number 71 fits into 30 0 times, leaving a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 7352.084507
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 14:
300 divided by 71 is 4 with a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 7352.08450704
Deduct 284 from 300 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The quotient of the division is 7352.08450704, and the remainder is 1.6e-08.