Let's divide 87084684 by 129
We want to figure out the number of times 87084684 can be divided by 129.

Advancing to step 1:
The number 129 fits into 8 0 times, leaving a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 129

On to step 2:
129 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
If we take 0 away from 87, we end up with 87.
Include the next digit (0) from the dividend after 87, then repeat: 870 / 129

Advancing to step 3:
If we divide 870 by 129, we get 6 and a remainder of 96.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
If we subtract 774 from 870, we get 96.
Append the next digit (8) from the dividend to 96 and continue with: 968 / 129

On to step 4:
If we divide 968 by 129, we get 7 and a remainder of 65.
Put 7 as the next digit of the answer. 
Result so far: 67.0
If we subtract 903 from 968, we get 65.
Grab the next digit (4) from the dividend, add it to 65, then carry on: 654 / 129

Let's proceed to step 5:
129 can be fit into 654 5 times, resulting in a remainder of 9.
The number 5 becomes the next digit in our result. 
Result so far: 675.0
The remainder is 9 after subtracting 645 from 654.
Include the next digit (6) from the dividend after 9, then repeat: 96 / 129

On to step 6:
When dividing 96 by 129, we get 0 with a remainder of 96.
The next digit of our result is 0. 
Result so far: 6750.0
Deduct 0 from 96 and we're left with 96.
Grab the next digit (8) from the dividend, add it to 96, then carry on: 968 / 129

Let's proceed to step 7:
The number 129 fits into 968 7 times, leaving a remainder of 65.
Write down 7 as next digit of the result. 
Result so far: 67507.0
Subtracting 903 from 968 leaves us with 65.
Append the next digit (4) from the dividend to 65 and continue with: 654 / 129

On to step 8:
The number 129 fits into 654 5 times, leaving a remainder of 9.
The next digit of our result is 5. 
Result so far: 675075.0
Deduct 645 from 654 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 9:
129 goes into 90 0 times with a remainder of 90.
Write down 0 as next digit of the result. 
Result so far: 675075.0
Deduct 0 from 90 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Moving on to step 10:
If we divide 900 by 129, we get 6 and a remainder of 126.
Write down 6 as next digit of the result. 
Result so far: 675075.06
Subtracting 774 from 900 leaves us with 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Step 11:
1260 divided by 129 is 9 with a remainder of 99.
Use 9 as the next digit of our solution. 
Result so far: 675075.069
Subtract 1161 from 1260 to get 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

On to step 12:
When dividing 990 by 129, we get 7 with a remainder of 87.
Use 7 as the next digit of our solution. 
Result so far: 675075.0697
Deduct 903 from 990 and we're left with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Moving on to step 13:
870 divided by 129 is 6 with a remainder of 96.
Put 6 as the next digit of the answer. 
Result so far: 675075.06976
If we subtract 774 from 870, we get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Advancing to step 14:
129 can be fit into 960 7 times, resulting in a remainder of 57.
Record the quotient 7 as the next digit in the result. 
Result so far: 675075.069767
If we take 903 away from 960, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Advancing to step 15:
129 can be fit into 570 4 times, resulting in a remainder of 54.
The number 4 becomes the next digit in our result. 
Result so far: 675075.0697674
If we subtract 516 from 570, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 16:
The number 129 fits into 540 4 times, leaving a remainder of 24.
Record the quotient 4 as the next digit in the result. 
Result so far: 675075.06976744
Deduct 516 from 540 and we're left 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.

The final outcome is 675075.06976744, with a leftover of 2.4e-08.