We're dividing 853421 by 63 
Let's see how many times 63 fits into 853421.

Advancing to step 1:
If we divide 8 by 63, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 63

Let's proceed to step 2:
63 can be fit into 85 1 times, resulting in a remainder of 22.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 63 away from 85, we end up with 22.
Take the next digit (3) from the dividend and append it to 22, then repeat: 223 / 63

Let's proceed to step 3:
When dividing 223 by 63, we get 3 with a remainder of 34.
The next digit of our result is 3. 
Result so far: 13.0
Subtracting 189 from 223 leaves us with 34.
Grab the next digit (4) from the dividend, add it to 34, then carry on: 344 / 63

On to step 4:
63 can be fit into 344 5 times, resulting in a remainder of 29.
The next digit of our result is 5. 
Result so far: 135.0
Deduct 315 from 344 and we're left with 29.
Append the next digit (2) from the dividend to 29 and continue with: 292 / 63

Let's proceed to step 5:
The number 63 fits into 292 4 times, leaving a remainder of 40.
The number 4 becomes the next digit in our result. 
Result so far: 1354.0
Subtracting 252 from 292 leaves us with 40.
Grab the next digit (1) from the dividend, add it to 40, then carry on: 401 / 63

Going ahead to step 6:
When dividing 401 by 63, we get 6 with a remainder of 23.
The next digit of our result is 6. 
Result so far: 13546.0
If we subtract 378 from 401, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 7:
63 can be fit into 230 3 times, resulting in a remainder of 41.
Record the quotient 3 as the next digit in the result. 
Result so far: 13546.3
The remainder is 41 after subtracting 189 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Step 8:
63 goes into 410 6 times with a remainder of 32.
Put 6 as the next digit of the answer. 
Result so far: 13546.36
If we subtract 378 from 410, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 9:
The number 63 fits into 320 5 times, leaving a remainder of 5.
The next digit of our result is 5. 
Result so far: 13546.365
The remainder is 5 after subtracting 315 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 10:
When dividing 50 by 63, we get 0 with a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 13546.365
Subtract 0 from 50 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 11:
When dividing 500 by 63, we get 7 with a remainder of 59.
Write down 7 as next digit of the result. 
Result so far: 13546.36507
Subtract 441 from 500 to get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Advancing to step 12:
The number 63 fits into 590 9 times, leaving a remainder of 23.
The next digit of our result is 9. 
Result so far: 13546.365079
If we subtract 567 from 590, we get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 13:
If we divide 230 by 63, we get 3 and a remainder of 41.
The next digit of our result is 3. 
Result so far: 13546.3650793
Subtract 189 from 230 to get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Let's proceed to step 14:
63 goes into 410 6 times with a remainder of 32.
The number 6 becomes the next digit in our result. 
Result so far: 13546.36507936
Subtract 378 from 410 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final result is 13546.36507936 with a remainder of 3.2e-08.