Let's divide 87291315 by 122
We want to figure out the number of times 87291315 can be divided by 122.

Advancing to step 1:
8 divided by 122 is 0 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.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 122

Moving on to step 2:
If we divide 87 by 122, we get 0 and a remainder of 87.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 87 to get 87.
Bring next digit (2) of the dividend behind the 87 and repeat the process: 872 / 122

Let's proceed to step 3:
872 divided by 122 is 7 with a remainder of 18.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
The remainder is 18 after subtracting 854 from 872.
Include the next digit (9) from the dividend after 18, then repeat: 189 / 122

On to step 4:
If we divide 189 by 122, we get 1 and a remainder of 67.
The next digit of our result is 1. 
Result so far: 71.0
Deduct 122 from 189 and we're left with 67.
Fetch the next digit (1) from the dividend, attach it to 67 and continue: 671 / 122

Step 5:
If we divide 671 by 122, we get 5 and a remainder of 61.
Put 5 as the next digit of the answer. 
Result so far: 715.0
The remainder is 61 after subtracting 610 from 671.
Grab the next digit (3) from the dividend, add it to 61, then carry on: 613 / 122

Advancing to step 6:
If we divide 613 by 122, we get 5 and a remainder of 3.
The next digit of our result is 5. 
Result so far: 7155.0
Subtracting 610 from 613 leaves us with 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 122

On to step 7:
122 can be fit into 31 0 times, resulting in a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 71550.0
Subtracting 0 from 31 leaves us with 31.
Include the next digit (5) from the dividend after 31, then repeat: 315 / 122

Moving on to step 8:
315 divided by 122 is 2 with a remainder of 71.
The next digit of our result is 2. 
Result so far: 715502.0
If we subtract 244 from 315, we get 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Step 9:
If we divide 710 by 122, we get 5 and a remainder of 100.
The number 5 becomes the next digit in our result. 
Result so far: 715502.5
The remainder is 100 after subtracting 610 from 710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 10:
1000 divided by 122 is 8 with a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 715502.58
Subtracting 976 from 1000 leaves us 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.

Advancing to step 11:
122 can be fit into 240 1 times, resulting in a remainder of 118.
Record the quotient 1 as the next digit in the result. 
Result so far: 715502.581
If we take 122 away from 240, we end up with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Moving on to step 12:
122 can be fit into 1180 9 times, resulting in a remainder of 82.
The next digit of our result is 9. 
Result so far: 715502.5819
Subtract 1098 from 1180 to get 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

On to step 13:
122 can be fit into 820 6 times, resulting in a remainder of 88.
Record the quotient 6 as the next digit in the result. 
Result so far: 715502.58196
If we take 732 away from 820, we end up with 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Let's proceed to step 14:
The number 122 fits into 880 7 times, leaving a remainder of 26.
Use 7 as the next digit of our solution. 
Result so far: 715502.581967
If we take 854 away from 880, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Going ahead to step 15:
122 can be fit into 260 2 times, resulting in a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 715502.5819672
Deduct 244 from 260 and we're left 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.

Going ahead to step 16:
The number 122 fits into 160 1 times, leaving a remainder of 38.
Use 1 as the next digit of our solution. 
Result so far: 715502.58196721
The remainder is 38 after subtracting 122 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Our division results in 715502.58196721 with a remaining 3.8e-08.