Let's divide 121398 by 63
Our goal is to divide 121398 by 63.

On to step 1:
If we divide 1 by 63, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 63

On to step 2:
The number 63 fits into 12 0 times, leaving a remainder of 12.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Grab the next digit (1) from the dividend, add it to 12, then carry on: 121 / 63

Advancing to step 3:
If we divide 121 by 63, we get 1 and a remainder of 58.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 63 from 121, we get 58.
Append the next digit (3) from the dividend to 58 and continue with: 583 / 63

Moving on to step 4:
63 goes into 583 9 times with a remainder of 16.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
If we take 567 away from 583, we end up with 16.
Grab the next digit (9) from the dividend, add it to 16, then carry on: 169 / 63

Advancing to step 5:
63 can be fit into 169 2 times, resulting in a remainder of 43.
Record the quotient 2 as the next digit in the result. 
Result so far: 192.0
Subtract 126 from 169 to get 43.
Fetch the next digit (8) from the dividend, attach it to 43 and continue: 438 / 63

Let's proceed to step 6:
If we divide 438 by 63, we get 6 and a remainder of 60.
Use 6 as the next digit of our solution. 
Result so far: 1926.0
If we take 378 away from 438, 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.

Let's proceed to step 7:
600 divided by 63 is 9 with a remainder of 33.
Write down 9 as next digit of the result. 
Result so far: 1926.9
Deduct 567 from 600 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 8:
63 can be fit into 330 5 times, resulting in a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 1926.95
If we take 315 away from 330, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 9:
The number 63 fits into 150 2 times, leaving a remainder of 24.
Write down 2 as next digit of the result. 
Result so far: 1926.952
Subtracting 126 from 150 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 10:
240 divided by 63 is 3 with a remainder of 51.
The number 3 becomes the next digit in our result. 
Result so far: 1926.9523
If we subtract 189 from 240, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Advancing to step 11:
The number 63 fits into 510 8 times, leaving a remainder of 6.
Write down 8 as next digit of the result. 
Result so far: 1926.95238
If we subtract 504 from 510, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 12:
63 goes into 60 0 times with a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 1926.95238
Subtracting 0 from 60 leaves us 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.

Moving on to step 13:
When dividing 600 by 63, we get 9 with a remainder of 33.
The number 9 becomes the next digit in our result. 
Result so far: 1926.9523809
Deduct 567 from 600 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Advancing to step 14:
When dividing 330 by 63, we get 5 with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 1926.95238095
Deduct 315 from 330 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The quotient of the division is 1926.95238095, and the remainder is 1.5e-08.