We're dividing 80665189 by 939 
Our goal is to divide 80665189 by 939.

On to step 1:
939 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 939

Going ahead to step 2:
80 divided by 939 is 0 with a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 80 to get 80.
Take the next digit (6) from the dividend and append it to 80, then repeat: 806 / 939

Moving on to step 3:
If we divide 806 by 939, we get 0 and a remainder of 806.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 806, we end up with 806.
Take the next digit (6) from the dividend and append it to 806, then repeat: 8066 / 939

Step 4:
If we divide 8066 by 939, we get 8 and a remainder of 554.
The next digit of our result is 8. 
Result so far: 8.0
If we take 7512 away from 8066, we end up with 554.
Bring next digit (5) of the dividend behind the 554 and repeat the process: 5545 / 939

Advancing to step 5:
939 can be fit into 5545 5 times, resulting in a remainder of 850.
Put 5 as the next digit of the answer. 
Result so far: 85.0
If we subtract 4695 from 5545, we get 850.
Fetch the next digit (1) from the dividend, attach it to 850 and continue: 8501 / 939

Going ahead to step 6:
939 can be fit into 8501 9 times, resulting in a remainder of 50.
Record the quotient 9 as the next digit in the result. 
Result so far: 859.0
Deduct 8451 from 8501 and we're left with 50.
Bring next digit (8) of the dividend behind the 50 and repeat the process: 508 / 939

Going ahead to step 7:
The number 939 fits into 508 0 times, leaving a remainder of 508.
Write down 0 as next digit of the result. 
Result so far: 8590.0
Subtract 0 from 508 to get 508.
Take the next digit (9) from the dividend and append it to 508, then repeat: 5089 / 939

Let's proceed to step 8:
939 can be fit into 5089 5 times, resulting in a remainder of 394.
The next digit of our result is 5. 
Result so far: 85905.0
If we take 4695 away from 5089, we end up with 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Moving on to step 9:
939 goes into 3940 4 times with a remainder of 184.
The number 4 becomes the next digit in our result. 
Result so far: 85905.4
Subtracting 3756 from 3940 leaves us with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Going ahead to step 10:
1840 divided by 939 is 1 with a remainder of 901.
Put 1 as the next digit of the answer. 
Result so far: 85905.41
Subtract 939 from 1840 to get 901.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9010, and continue the process.

Moving on to step 11:
If we divide 9010 by 939, we get 9 and a remainder of 559.
The next digit of our result is 9. 
Result so far: 85905.419
Deduct 8451 from 9010 and we're left with 559.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5590, and continue the process.

Step 12:
939 goes into 5590 5 times with a remainder of 895.
Write down 5 as next digit of the result. 
Result so far: 85905.4195
Deduct 4695 from 5590 and we're left with 895.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8950, and continue the process.

On to step 13:
939 can be fit into 8950 9 times, resulting in a remainder of 499.
Record the quotient 9 as the next digit in the result. 
Result so far: 85905.41959
The remainder is 499 after subtracting 8451 from 8950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4990, and continue the process.

Moving on to step 14:
The number 939 fits into 4990 5 times, leaving a remainder of 295.
Use 5 as the next digit of our solution. 
Result so far: 85905.419595
Deduct 4695 from 4990 and we're left with 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Step 15:
939 can be fit into 2950 3 times, resulting in a remainder of 133.
Put 3 as the next digit of the answer. 
Result so far: 85905.4195953
The remainder is 133 after subtracting 2817 from 2950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1330, and continue the process.

On to step 16:
939 can be fit into 1330 1 times, resulting in a remainder of 391.
Record the quotient 1 as the next digit in the result. 
Result so far: 85905.41959531
If we subtract 939 from 1330, we get 391.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3910, and continue the process.

The final result is 85905.41959531 with a remainder of 3.91e-07.