Let's divide 63946383 by 80
Our goal is to divide 63946383 by 80.

On to step 1:
80 can be fit into 6 0 times, resulting in a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 80

Going ahead to step 2:
The number 80 fits into 63 0 times, leaving a remainder of 63.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 63 to get 63.
Append the next digit (9) from the dividend to 63 and continue with: 639 / 80

Going ahead to step 3:
80 can be fit into 639 7 times, resulting in a remainder of 79.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtracting 560 from 639 leaves us with 79.
Grab the next digit (4) from the dividend, add it to 79, then carry on: 794 / 80

Step 4:
794 divided by 80 is 9 with a remainder of 74.
Put 9 as the next digit of the answer. 
Result so far: 79.0
Deduct 720 from 794 and we're left with 74.
Include the next digit (6) from the dividend after 74, then repeat: 746 / 80

Advancing to step 5:
80 can be fit into 746 9 times, resulting in a remainder of 26.
The number 9 becomes the next digit in our result. 
Result so far: 799.0
If we take 720 away from 746, we end up with 26.
Take the next digit (3) from the dividend and append it to 26, then repeat: 263 / 80

Advancing to step 6:
If we divide 263 by 80, we get 3 and a remainder of 23.
Write down 3 as next digit of the result. 
Result so far: 7993.0
If we subtract 240 from 263, we get 23.
Bring next digit (8) of the dividend behind the 23 and repeat the process: 238 / 80

On to step 7:
The number 80 fits into 238 2 times, leaving a remainder of 78.
Use 2 as the next digit of our solution. 
Result so far: 79932.0
Subtract 160 from 238 to get 78.
Grab the next digit (3) from the dividend, add it to 78, then carry on: 783 / 80

Moving on to step 8:
When dividing 783 by 80, we get 9 with a remainder of 63.
Record the quotient 9 as the next digit in the result. 
Result so far: 799329.0
Subtract 720 from 783 to get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Let's proceed to step 9:
The number 80 fits into 630 7 times, leaving a remainder of 70.
Put 7 as the next digit of the answer. 
Result so far: 799329.7
Deduct 560 from 630 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 10:
If we divide 700 by 80, we get 8 and a remainder of 60.
Record the quotient 8 as the next digit in the result. 
Result so far: 799329.78
If we take 640 away from 700, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 11:
80 can be fit into 600 7 times, resulting in a remainder of 40.
Record the quotient 7 as the next digit in the result. 
Result so far: 799329.787
Subtracting 560 from 600 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 12:
When dividing 400 by 80, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 799329.7875
Deduct 400 from 400 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 13:
80 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 799329.7875
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 14:
If we divide 0 by 80, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 799329.7875
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 799329.7875, and the remainder is 0.0.