We divide 72691902 by 310
The aim is to understand the frequency of 310 in 72691902.

Going ahead to step 1:
When dividing 7 by 310, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 310

Moving on to step 2:
310 can be fit into 72 0 times, resulting in a remainder of 72.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 72 leaves us with 72.
Append the next digit (6) from the dividend to 72 and continue with: 726 / 310

Going ahead to step 3:
310 can be fit into 726 2 times, resulting in a remainder of 106.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtracting 620 from 726 leaves us with 106.
Append the next digit (9) from the dividend to 106 and continue with: 1069 / 310

Going ahead to step 4:
1069 divided by 310 is 3 with a remainder of 139.
The number 3 becomes the next digit in our result. 
Result so far: 23.0
Subtracting 930 from 1069 leaves us with 139.
Grab the next digit (1) from the dividend, add it to 139, then carry on: 1391 / 310

On to step 5:
1391 divided by 310 is 4 with a remainder of 151.
Record the quotient 4 as the next digit in the result. 
Result so far: 234.0
The remainder is 151 after subtracting 1240 from 1391.
Include the next digit (9) from the dividend after 151, then repeat: 1519 / 310

Let's proceed to step 6:
1519 divided by 310 is 4 with a remainder of 279.
Put 4 as the next digit of the answer. 
Result so far: 2344.0
Subtract 1240 from 1519 to get 279.
Grab the next digit (0) from the dividend, add it to 279, then carry on: 2790 / 310

Moving on to step 7:
The number 310 fits into 2790 9 times, leaving a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 23449.0
The remainder is 0 after subtracting 2790 from 2790.
Grab the next digit (2) from the dividend, add it to 0, then carry on: 2 / 310

Advancing to step 8:
The number 310 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 234490.0
Deduct 0 from 2 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 9:
20 divided by 310 is 0 with a remainder of 20.
Write down 0 as next digit of the result. 
Result so far: 234490.0
If we subtract 0 from 20, we 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 10:
310 goes into 200 0 times with a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 234490.0
The remainder is 200 after subtracting 0 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final result is 234490.0 with a remainder of 0.2.