We divide 421603 by 52
Let's see how many times 52 fits into 421603.

Going ahead to step 1:
The number 52 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 52

Moving on to step 2:
If we divide 42 by 52, we get 0 and a remainder of 42.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Grab the next digit (1) from the dividend, add it to 42, then carry on: 421 / 52

Going ahead to step 3:
52 can be fit into 421 8 times, resulting in a remainder of 5.
Use 8 as the next digit of our solution. 
Result so far: 8.0
If we subtract 416 from 421, we get 5.
Fetch the next digit (6) from the dividend, attach it to 5 and continue: 56 / 52

Advancing to step 4:
52 goes into 56 1 times with a remainder of 4.
Put 1 as the next digit of the answer. 
Result so far: 81.0
Deduct 52 from 56 and we're left with 4.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 52

Moving on to step 5:
52 goes into 40 0 times with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 810.0
If we take 0 away from 40, we end up with 40.
Fetch the next digit (3) from the dividend, attach it to 40 and continue: 403 / 52

Going ahead to step 6:
The number 52 fits into 403 7 times, leaving a remainder of 39.
Write down 7 as next digit of the result. 
Result so far: 8107.0
If we subtract 364 from 403, we get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Advancing to step 7:
If we divide 390 by 52, we get 7 and a remainder of 26.
Write down 7 as next digit of the result. 
Result so far: 8107.7
Subtract 364 from 390 to get 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 8:
When dividing 260 by 52, we get 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 8107.75
Subtract 260 from 260 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
When dividing 0 by 52, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 8107.75
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 10:
When dividing 0 by 52, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 8107.75
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 8107.75, and the remainder is 0.0.