Let's divide 420455 by 63
We're looking to find how many times 63 goes into 420455.

Step 1:
63 goes into 4 0 times with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 63

Going ahead to step 2:
42 divided by 63 is 0 with a remainder of 42.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Take the next digit (0) from the dividend and append it to 42, then repeat: 420 / 63

Advancing to step 3:
63 can be fit into 420 6 times, resulting in a remainder of 42.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Deduct 378 from 420 and we're left with 42.
Append the next digit (4) from the dividend to 42 and continue with: 424 / 63

On to step 4:
63 goes into 424 6 times with a remainder of 46.
Put 6 as the next digit of the answer. 
Result so far: 66.0
If we take 378 away from 424, we end up with 46.
Fetch the next digit (5) from the dividend, attach it to 46 and continue: 465 / 63

Step 5:
The number 63 fits into 465 7 times, leaving a remainder of 24.
Record the quotient 7 as the next digit in the result. 
Result so far: 667.0
Subtract 441 from 465 to get 24.
Fetch the next digit (5) from the dividend, attach it to 24 and continue: 245 / 63

Advancing to step 6:
63 goes into 245 3 times with a remainder of 56.
Record the quotient 3 as the next digit in the result. 
Result so far: 6673.0
If we take 189 away from 245, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 7:
63 can be fit into 560 8 times, resulting in a remainder of 56.
Put 8 as the next digit of the answer. 
Result so far: 6673.8
If we subtract 504 from 560, we get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Advancing to step 8:
If we divide 560 by 63, we get 8 and a remainder of 56.
Use 8 as the next digit of our solution. 
Result so far: 6673.88
If we take 504 away from 560, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The final outcome is 6673.88, with a leftover of 0.056.