We look at the division of 63953848 by 861 
We want to figure out the number of times 63953848 can be divided by 861.

Let's proceed to step 1:
If we divide 6 by 861, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 861

Let's proceed to step 2:
861 can be fit into 63 0 times, resulting in a remainder of 63.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 63, we get 63.
Take the next digit (9) from the dividend and append it to 63, then repeat: 639 / 861

Step 3:
861 goes into 639 0 times with a remainder of 639.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 639, we get 639.
Fetch the next digit (5) from the dividend, attach it to 639 and continue: 6395 / 861

Going ahead to step 4:
The number 861 fits into 6395 7 times, leaving a remainder of 368.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Deduct 6027 from 6395 and we're left with 368.
Bring next digit (3) of the dividend behind the 368 and repeat the process: 3683 / 861

Let's proceed to step 5:
3683 divided by 861 is 4 with a remainder of 239.
The number 4 becomes the next digit in our result. 
Result so far: 74.0
Subtract 3444 from 3683 to get 239.
Grab the next digit (8) from the dividend, add it to 239, then carry on: 2398 / 861

On to step 6:
If we divide 2398 by 861, we get 2 and a remainder of 676.
Write down 2 as next digit of the result. 
Result so far: 742.0
Deduct 1722 from 2398 and we're left with 676.
Grab the next digit (4) from the dividend, add it to 676, then carry on: 6764 / 861

Step 7:
If we divide 6764 by 861, we get 7 and a remainder of 737.
Write down 7 as next digit of the result. 
Result so far: 7427.0
Subtract 6027 from 6764 to get 737.
Append the next digit (8) from the dividend to 737 and continue with: 7378 / 861

Moving on to step 8:
The number 861 fits into 7378 8 times, leaving a remainder of 490.
Put 8 as the next digit of the answer. 
Result so far: 74278.0
Deduct 6888 from 7378 and we're left with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

On to step 9:
The number 861 fits into 4900 5 times, leaving a remainder of 595.
Record the quotient 5 as the next digit in the result. 
Result so far: 74278.5
Subtracting 4305 from 4900 leaves us with 595.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5950, and continue the process.

Going ahead to step 10:
If we divide 5950 by 861, we get 6 and a remainder of 784.
The number 6 becomes the next digit in our result. 
Result so far: 74278.56
The remainder is 784 after subtracting 5166 from 5950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7840, and continue the process.

Going ahead to step 11:
The number 861 fits into 7840 9 times, leaving a remainder of 91.
Put 9 as the next digit of the answer. 
Result so far: 74278.569
If we take 7749 away from 7840, we end up with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Advancing to step 12:
If we divide 910 by 861, we get 1 and a remainder of 49.
The number 1 becomes the next digit in our result. 
Result so far: 74278.5691
If we subtract 861 from 910, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Advancing to step 13:
When dividing 490 by 861, we get 0 with a remainder of 490.
Write down 0 as next digit of the result. 
Result so far: 74278.5691
Subtract 0 from 490 to get 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Going ahead to step 14:
4900 divided by 861 is 5 with a remainder of 595.
The next digit of our result is 5. 
Result so far: 74278.569105
The remainder is 595 after subtracting 4305 from 4900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5950, and continue the process.

Going ahead to step 15:
When dividing 5950 by 861, we get 6 with a remainder of 784.
The next digit of our result is 6. 
Result so far: 74278.5691056
The remainder is 784 after subtracting 5166 from 5950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7840, and continue the process.

Step 16:
861 can be fit into 7840 9 times, resulting in a remainder of 91.
Put 9 as the next digit of the answer. 
Result so far: 74278.56910569
Subtract 7749 from 7840 to get 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

The final outcome is 74278.56910569, with a leftover of 9.1e-08.