We're dividing 78996606 by 641 
Our goal is to divide 78996606 by 641.

Going ahead to step 1:
The number 641 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 641

Advancing to step 2:
641 goes into 78 0 times with a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 78 leaves us with 78.
Append the next digit (9) from the dividend to 78 and continue with: 789 / 641

Going ahead to step 3:
641 can be fit into 789 1 times, resulting in a remainder of 148.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 641 from 789 leaves us with 148.
Fetch the next digit (9) from the dividend, attach it to 148 and continue: 1489 / 641

On to step 4:
641 goes into 1489 2 times with a remainder of 207.
Write down 2 as next digit of the result. 
Result so far: 12.0
If we subtract 1282 from 1489, we get 207.
Include the next digit (6) from the dividend after 207, then repeat: 2076 / 641

Let's proceed to step 5:
When dividing 2076 by 641, we get 3 with a remainder of 153.
Put 3 as the next digit of the answer. 
Result so far: 123.0
The remainder is 153 after subtracting 1923 from 2076.
Bring next digit (6) of the dividend behind the 153 and repeat the process: 1536 / 641

Advancing to step 6:
If we divide 1536 by 641, we get 2 and a remainder of 254.
Use 2 as the next digit of our solution. 
Result so far: 1232.0
Subtracting 1282 from 1536 leaves us with 254.
Take the next digit (0) from the dividend and append it to 254, then repeat: 2540 / 641

Step 7:
641 goes into 2540 3 times with a remainder of 617.
The number 3 becomes the next digit in our result. 
Result so far: 12323.0
Subtracting 1923 from 2540 leaves us with 617.
Fetch the next digit (6) from the dividend, attach it to 617 and continue: 6176 / 641

Advancing to step 8:
The number 641 fits into 6176 9 times, leaving a remainder of 407.
The number 9 becomes the next digit in our result. 
Result so far: 123239.0
If we subtract 5769 from 6176, we get 407.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4070, and continue the process.

Let's proceed to step 9:
The number 641 fits into 4070 6 times, leaving a remainder of 224.
The number 6 becomes the next digit in our result. 
Result so far: 123239.6
If we subtract 3846 from 4070, we get 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

On to step 10:
When dividing 2240 by 641, we get 3 with a remainder of 317.
Put 3 as the next digit of the answer. 
Result so far: 123239.63
The remainder is 317 after subtracting 1923 from 2240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3170, and continue the process.

On to step 11:
The number 641 fits into 3170 4 times, leaving a remainder of 606.
Use 4 as the next digit of our solution. 
Result so far: 123239.634
If we take 2564 away from 3170, we end up with 606.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6060, and continue the process.

Let's proceed to step 12:
If we divide 6060 by 641, we get 9 and a remainder of 291.
The next digit of our result is 9. 
Result so far: 123239.6349
Subtract 5769 from 6060 to get 291.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2910, and continue the process.

On to step 13:
2910 divided by 641 is 4 with a remainder of 346.
Write down 4 as next digit of the result. 
Result so far: 123239.63494
Subtracting 2564 from 2910 leaves us with 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Advancing to step 14:
When dividing 3460 by 641, we get 5 with a remainder of 255.
The next digit of our result is 5. 
Result so far: 123239.634945
If we subtract 3205 from 3460, we get 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Let's proceed to step 15:
641 goes into 2550 3 times with a remainder of 627.
Record the quotient 3 as the next digit in the result. 
Result so far: 123239.6349453
Subtracting 1923 from 2550 leaves us with 627.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6270, and continue the process.

On to step 16:
The number 641 fits into 6270 9 times, leaving a remainder of 501.
Put 9 as the next digit of the answer. 
Result so far: 123239.63494539
The remainder is 501 after subtracting 5769 from 6270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5010, and continue the process.

After the division, we end up with 123239.63494539 and a remainder of 5.01e-07.