Let's divide 87151851 by 814
We want to figure out the number of times 87151851 can be divided by 814.

Advancing to step 1:
814 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 814

On to step 2:
814 can be fit into 87 0 times, resulting in a remainder of 87.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 87 and we're left with 87.
Include the next digit (1) from the dividend after 87, then repeat: 871 / 814

Moving on to step 3:
The number 814 fits into 871 1 times, leaving a remainder of 57.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 814 from 871 to get 57.
Include the next digit (5) from the dividend after 57, then repeat: 575 / 814

Advancing to step 4:
If we divide 575 by 814, we get 0 and a remainder of 575.
The next digit of our result is 0. 
Result so far: 10.0
The remainder is 575 after subtracting 0 from 575.
Bring next digit (1) of the dividend behind the 575 and repeat the process: 5751 / 814

On to step 5:
814 goes into 5751 7 times with a remainder of 53.
Write down 7 as next digit of the result. 
Result so far: 107.0
Deduct 5698 from 5751 and we're left with 53.
Bring next digit (8) of the dividend behind the 53 and repeat the process: 538 / 814

Let's proceed to step 6:
The number 814 fits into 538 0 times, leaving a remainder of 538.
The number 0 becomes the next digit in our result. 
Result so far: 1070.0
Subtracting 0 from 538 leaves us with 538.
Append the next digit (5) from the dividend to 538 and continue with: 5385 / 814

On to step 7:
814 can be fit into 5385 6 times, resulting in a remainder of 501.
The next digit of our result is 6. 
Result so far: 10706.0
If we take 4884 away from 5385, we end up with 501.
Bring next digit (1) of the dividend behind the 501 and repeat the process: 5011 / 814

On to step 8:
If we divide 5011 by 814, we get 6 and a remainder of 127.
Record the quotient 6 as the next digit in the result. 
Result so far: 107066.0
Deduct 4884 from 5011 and we're left with 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

Going ahead to step 9:
If we divide 1270 by 814, we get 1 and a remainder of 456.
The next digit of our result is 1. 
Result so far: 107066.1
Deduct 814 from 1270 and we're left with 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

Moving on to step 10:
When dividing 4560 by 814, we get 5 with a remainder of 490.
Put 5 as the next digit of the answer. 
Result so far: 107066.15
The remainder is 490 after subtracting 4070 from 4560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Moving on to step 11:
814 can be fit into 4900 6 times, resulting in a remainder of 16.
The number 6 becomes the next digit in our result. 
Result so far: 107066.156
Subtracting 4884 from 4900 leaves us 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.

Advancing to step 12:
814 can be fit into 160 0 times, resulting in a remainder of 160.
Write down 0 as next digit of the result. 
Result so far: 107066.156
The remainder is 160 after subtracting 0 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 13:
The number 814 fits into 1600 1 times, leaving a remainder of 786.
The number 1 becomes the next digit in our result. 
Result so far: 107066.15601
Deduct 814 from 1600 and we're left with 786.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7860, and continue the process.

Let's proceed to step 14:
814 goes into 7860 9 times with a remainder of 534.
Put 9 as the next digit of the answer. 
Result so far: 107066.156019
Subtract 7326 from 7860 to get 534.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5340, and continue the process.

On to step 15:
5340 divided by 814 is 6 with a remainder of 456.
Put 6 as the next digit of the answer. 
Result so far: 107066.1560196
Deduct 4884 from 5340 and we're left with 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

Let's proceed to step 16:
The number 814 fits into 4560 5 times, leaving a remainder of 490.
Record the quotient 5 as the next digit in the result. 
Result so far: 107066.15601965
Subtracting 4070 from 4560 leaves us with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

After the division, we end up with 107066.15601965 and a remainder of 4.9e-07.