Let's divide 71515482 by 921
The aim is to understand the frequency of 921 in 71515482.

On to step 1:
921 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the 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 / 921

On to step 2:
When dividing 71 by 921, we get 0 with a remainder of 71.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 71 to get 71.
Grab the next digit (5) from the dividend, add it to 71, then carry on: 715 / 921

Step 3:
715 divided by 921 is 0 with a remainder of 715.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 715 to get 715.
Grab the next digit (1) from the dividend, add it to 715, then carry on: 7151 / 921

Moving on to step 4:
921 can be fit into 7151 7 times, resulting in a remainder of 704.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we subtract 6447 from 7151, we get 704.
Bring next digit (5) of the dividend behind the 704 and repeat the process: 7045 / 921

Let's proceed to step 5:
7045 divided by 921 is 7 with a remainder of 598.
The next digit of our result is 7. 
Result so far: 77.0
Deduct 6447 from 7045 and we're left with 598.
Append the next digit (4) from the dividend to 598 and continue with: 5984 / 921

Step 6:
If we divide 5984 by 921, we get 6 and a remainder of 458.
Put 6 as the next digit of the answer. 
Result so far: 776.0
The remainder is 458 after subtracting 5526 from 5984.
Bring next digit (8) of the dividend behind the 458 and repeat the process: 4588 / 921

Advancing to step 7:
4588 divided by 921 is 4 with a remainder of 904.
Write down 4 as next digit of the result. 
Result so far: 7764.0
Subtract 3684 from 4588 to get 904.
Grab the next digit (2) from the dividend, add it to 904, then carry on: 9042 / 921

Step 8:
When dividing 9042 by 921, we get 9 with a remainder of 753.
The next digit of our result is 9. 
Result so far: 77649.0
Deduct 8289 from 9042 and we're left with 753.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7530, and continue the process.

On to step 9:
If we divide 7530 by 921, we get 8 and a remainder of 162.
Use 8 as the next digit of our solution. 
Result so far: 77649.8
Deduct 7368 from 7530 and we're left with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Going ahead to step 10:
921 can be fit into 1620 1 times, resulting in a remainder of 699.
The next digit of our result is 1. 
Result so far: 77649.81
Deduct 921 from 1620 and we're left with 699.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6990, and continue the process.

Going ahead to step 11:
6990 divided by 921 is 7 with a remainder of 543.
The number 7 becomes the next digit in our result. 
Result so far: 77649.817
The remainder is 543 after subtracting 6447 from 6990.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5430, and continue the process.

Step 12:
921 can be fit into 5430 5 times, resulting in a remainder of 825.
Use 5 as the next digit of our solution. 
Result so far: 77649.8175
Deduct 4605 from 5430 and we're left with 825.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8250, and continue the process.

Advancing to step 13:
921 can be fit into 8250 8 times, resulting in a remainder of 882.
Put 8 as the next digit of the answer. 
Result so far: 77649.81758
Deduct 7368 from 8250 and we're left with 882.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8820, and continue the process.

Moving on to step 14:
If we divide 8820 by 921, we get 9 and a remainder of 531.
The next digit of our result is 9. 
Result so far: 77649.817589
If we subtract 8289 from 8820, we get 531.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5310, and continue the process.

Going ahead to step 15:
921 goes into 5310 5 times with a remainder of 705.
The number 5 becomes the next digit in our result. 
Result so far: 77649.8175895
Subtract 4605 from 5310 to get 705.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7050, and continue the process.

Advancing to step 16:
7050 divided by 921 is 7 with a remainder of 603.
The number 7 becomes the next digit in our result. 
Result so far: 77649.81758957
If we subtract 6447 from 7050, we get 603.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6030, and continue the process.

In conclusion, the division gives 77649.81758957 with a balance of 6.03e-07.