31717371 ÷ 202 
The aim is to understand the frequency of 202 in 31717371.

On to step 1:
When dividing 3 by 202, we get 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Fetch the next digit (1) from the dividend, attach it to 3 and continue: 31 / 202

Let's proceed to step 2:
202 goes into 31 0 times with a remainder of 31.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 31, we get 31.
Take the next digit (7) from the dividend and append it to 31, then repeat: 317 / 202

On to step 3:
When dividing 317 by 202, we get 1 with a remainder of 115.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 202 from 317 to get 115.
Fetch the next digit (1) from the dividend, attach it to 115 and continue: 1151 / 202

Moving on to step 4:
1151 divided by 202 is 5 with a remainder of 141.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Subtracting 1010 from 1151 leaves us with 141.
Take the next digit (7) from the dividend and append it to 141, then repeat: 1417 / 202

Going ahead to step 5:
When dividing 1417 by 202, we get 7 with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 157.0
If we subtract 1414 from 1417, we get 3.
Append the next digit (3) from the dividend to 3 and continue with: 33 / 202

On to step 6:
The number 202 fits into 33 0 times, leaving a remainder of 33.
Record the quotient 0 as the next digit in the result. 
Result so far: 1570.0
Subtract 0 from 33 to get 33.
Grab the next digit (7) from the dividend, add it to 33, then carry on: 337 / 202

Going ahead to step 7:
202 can be fit into 337 1 times, resulting in a remainder of 135.
The next digit of our result is 1. 
Result so far: 15701.0
Deduct 202 from 337 and we're left with 135.
Grab the next digit (1) from the dividend, add it to 135, then carry on: 1351 / 202

Let's proceed to step 8:
202 goes into 1351 6 times with a remainder of 139.
Record the quotient 6 as the next digit in the result. 
Result so far: 157016.0
Subtracting 1212 from 1351 leaves us with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Going ahead to step 9:
The number 202 fits into 1390 6 times, leaving a remainder of 178.
Record the quotient 6 as the next digit in the result. 
Result so far: 157016.6
If we subtract 1212 from 1390, we get 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Moving on to step 10:
When dividing 1780 by 202, we get 8 with a remainder of 164.
Use 8 as the next digit of our solution. 
Result so far: 157016.68
Subtract 1616 from 1780 to get 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Going ahead to step 11:
The number 202 fits into 1640 8 times, leaving a remainder of 24.
Put 8 as the next digit of the answer. 
Result so far: 157016.688
Deduct 1616 from 1640 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The final result is 157016.688 with a remainder of 0.0024.