We look at the division of 78053357 by 987 
The aim is to understand the frequency of 987 in 78053357.

Moving on to step 1:
987 goes into 7 0 times with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 987

Step 2:
If we divide 78 by 987, we get 0 and a remainder of 78.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Grab the next digit (0) from the dividend, add it to 78, then carry on: 780 / 987

Moving on to step 3:
If we divide 780 by 987, we get 0 and a remainder of 780.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 780 and we're left with 780.
Include the next digit (5) from the dividend after 780, then repeat: 7805 / 987

Going ahead to step 4:
987 can be fit into 7805 7 times, resulting in a remainder of 896.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 896 after subtracting 6909 from 7805.
Bring next digit (3) of the dividend behind the 896 and repeat the process: 8963 / 987

Advancing to step 5:
8963 divided by 987 is 9 with a remainder of 80.
Use 9 as the next digit of our solution. 
Result so far: 79.0
Deduct 8883 from 8963 and we're left with 80.
Grab the next digit (3) from the dividend, add it to 80, then carry on: 803 / 987

On to step 6:
When dividing 803 by 987, we get 0 with a remainder of 803.
Record the quotient 0 as the next digit in the result. 
Result so far: 790.0
Subtract 0 from 803 to get 803.
Append the next digit (5) from the dividend to 803 and continue with: 8035 / 987

Going ahead to step 7:
When dividing 8035 by 987, we get 8 with a remainder of 139.
The number 8 becomes the next digit in our result. 
Result so far: 7908.0
If we subtract 7896 from 8035, we get 139.
Grab the next digit (7) from the dividend, add it to 139, then carry on: 1397 / 987

On to step 8:
1397 divided by 987 is 1 with a remainder of 410.
The next digit of our result is 1. 
Result so far: 79081.0
If we subtract 987 from 1397, we get 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Advancing to step 9:
The number 987 fits into 4100 4 times, leaving a remainder of 152.
Use 4 as the next digit of our solution. 
Result so far: 79081.4
Deduct 3948 from 4100 and we're left with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Moving on to step 10:
When dividing 1520 by 987, we get 1 with a remainder of 533.
Put 1 as the next digit of the answer. 
Result so far: 79081.41
The remainder is 533 after subtracting 987 from 1520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5330, and continue the process.

Step 11:
987 goes into 5330 5 times with a remainder of 395.
Record the quotient 5 as the next digit in the result. 
Result so far: 79081.415
The remainder is 395 after subtracting 4935 from 5330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3950, and continue the process.

Advancing to step 12:
The number 987 fits into 3950 4 times, leaving a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 79081.4154
The remainder is 2 after subtracting 3948 from 3950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 13:
987 can be fit into 20 0 times, resulting in a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 79081.4154
If we take 0 away from 20, we end up with 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 14:
987 can be fit into 200 0 times, resulting in a remainder of 200.
Write down 0 as next digit of the result. 
Result so far: 79081.4154
If we take 0 away from 200, we end up 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.

The final result is 79081.4154 with a remainder of 2e-05.