We're dividing 83403680 by 987 
We want to divide 83403680 by 987.

Advancing to step 1:
If we divide 8 by 987, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (3) from the dividend, add it to 8, then carry on: 83 / 987

On to step 2:
987 can be fit into 83 0 times, resulting in a remainder of 83.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 83 after subtracting 0 from 83.
Include the next digit (4) from the dividend after 83, then repeat: 834 / 987

Let's proceed to step 3:
987 can be fit into 834 0 times, resulting in a remainder of 834.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 834, we get 834.
Include the next digit (0) from the dividend after 834, then repeat: 8340 / 987

Going ahead to step 4:
If we divide 8340 by 987, we get 8 and a remainder of 444.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
The remainder is 444 after subtracting 7896 from 8340.
Fetch the next digit (3) from the dividend, attach it to 444 and continue: 4443 / 987

On to step 5:
987 goes into 4443 4 times with a remainder of 495.
Write down 4 as next digit of the result. 
Result so far: 84.0
Subtract 3948 from 4443 to get 495.
Take the next digit (6) from the dividend and append it to 495, then repeat: 4956 / 987

Let's proceed to step 6:
If we divide 4956 by 987, we get 5 and a remainder of 21.
Write down 5 as next digit of the result. 
Result so far: 845.0
Subtracting 4935 from 4956 leaves us with 21.
Fetch the next digit (8) from the dividend, attach it to 21 and continue: 218 / 987

Step 7:
If we divide 218 by 987, we get 0 and a remainder of 218.
Record the quotient 0 as the next digit in the result. 
Result so far: 8450.0
Subtract 0 from 218 to get 218.
Include the next digit (0) from the dividend after 218, then repeat: 2180 / 987

Moving on to step 8:
The number 987 fits into 2180 2 times, leaving a remainder of 206.
Put 2 as the next digit of the answer. 
Result so far: 84502.0
Subtracting 1974 from 2180 leaves us with 206.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2060, and continue the process.

Going ahead to step 9:
2060 divided by 987 is 2 with a remainder of 86.
The number 2 becomes the next digit in our result. 
Result so far: 84502.2
The remainder is 86 after subtracting 1974 from 2060.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Going ahead to step 10:
860 divided by 987 is 0 with a remainder of 860.
The next digit of our result is 0. 
Result so far: 84502.2
If we subtract 0 from 860, we get 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8600, and continue the process.

Moving on to step 11:
987 can be fit into 8600 8 times, resulting in a remainder of 704.
The next digit of our result is 8. 
Result so far: 84502.208
Deduct 7896 from 8600 and we're left with 704.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7040, and continue the process.

On to step 12:
The number 987 fits into 7040 7 times, leaving a remainder of 131.
Write down 7 as next digit of the result. 
Result so far: 84502.2087
Subtract 6909 from 7040 to get 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

Step 13:
When dividing 1310 by 987, we get 1 with a remainder of 323.
The next digit of our result is 1. 
Result so far: 84502.20871
Subtracting 987 from 1310 leaves us with 323.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3230, and continue the process.

Advancing to step 14:
The number 987 fits into 3230 3 times, leaving a remainder of 269.
Put 3 as the next digit of the answer. 
Result so far: 84502.208713
If we take 2961 away from 3230, we end up with 269.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2690, and continue the process.

Let's proceed to step 15:
The number 987 fits into 2690 2 times, leaving a remainder of 716.
Record the quotient 2 as the next digit in the result. 
Result so far: 84502.2087132
Subtracting 1974 from 2690 leaves us with 716.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7160, and continue the process.

Let's proceed to step 16:
When dividing 7160 by 987, we get 7 with a remainder of 251.
The next digit of our result is 7. 
Result so far: 84502.20871327
If we take 6909 away from 7160, we end up with 251.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2510, and continue the process.

In conclusion, the division gives 84502.20871327 with a balance of 2.51e-07.