We're dividing 63557189 by 391 
We want to divide 63557189 by 391.

Advancing to step 1:
If we divide 6 by 391, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 391

Moving on to step 2:
391 goes into 63 0 times with a remainder of 63.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 63 and we're left with 63.
Append the next digit (5) from the dividend to 63 and continue with: 635 / 391

Step 3:
391 goes into 635 1 times with a remainder of 244.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 391 from 635 leaves us with 244.
Take the next digit (5) from the dividend and append it to 244, then repeat: 2445 / 391

Step 4:
The number 391 fits into 2445 6 times, leaving a remainder of 99.
The next digit of our result is 6. 
Result so far: 16.0
If we subtract 2346 from 2445, we get 99.
Fetch the next digit (7) from the dividend, attach it to 99 and continue: 997 / 391

Going ahead to step 5:
If we divide 997 by 391, we get 2 and a remainder of 215.
Write down 2 as next digit of the result. 
Result so far: 162.0
If we take 782 away from 997, we end up with 215.
Append the next digit (1) from the dividend to 215 and continue with: 2151 / 391

On to step 6:
391 goes into 2151 5 times with a remainder of 196.
The next digit of our result is 5. 
Result so far: 1625.0
The remainder is 196 after subtracting 1955 from 2151.
Include the next digit (8) from the dividend after 196, then repeat: 1968 / 391

Advancing to step 7:
When dividing 1968 by 391, we get 5 with a remainder of 13.
Record the quotient 5 as the next digit in the result. 
Result so far: 16255.0
If we subtract 1955 from 1968, we get 13.
Bring next digit (9) of the dividend behind the 13 and repeat the process: 139 / 391

Advancing to step 8:
If we divide 139 by 391, we get 0 and a remainder of 139.
The next digit of our result is 0. 
Result so far: 162550.0
Subtracting 0 from 139 leaves us with 139.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1390, and continue the process.

Moving on to step 9:
391 can be fit into 1390 3 times, resulting in a remainder of 217.
Put 3 as the next digit of the answer. 
Result so far: 162550.3
The remainder is 217 after subtracting 1173 from 1390.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2170, and continue the process.

Step 10:
The number 391 fits into 2170 5 times, leaving a remainder of 215.
Record the quotient 5 as the next digit in the result. 
Result so far: 162550.35
If we subtract 1955 from 2170, we get 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

On to step 11:
If we divide 2150 by 391, we get 5 and a remainder of 195.
Put 5 as the next digit of the answer. 
Result so far: 162550.355
If we take 1955 away from 2150, we end up with 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

The final result is 162550.355 with a remainder of 0.0195.