We divide 621360 by 53
We're looking to find how many times 53 goes into 621360.

Advancing to step 1:
53 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Bring next digit (2) of the dividend behind the 6 and repeat the process: 62 / 53

Step 2:
62 divided by 53 is 1 with a remainder of 9.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 53 from 62, we get 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 53

Moving on to step 3:
53 goes into 91 1 times with a remainder of 38.
Put 1 as the next digit of the answer. 
Result so far: 11.0
If we take 53 away from 91, we end up with 38.
Take the next digit (3) from the dividend and append it to 38, then repeat: 383 / 53

Step 4:
53 goes into 383 7 times with a remainder of 12.
Write down 7 as next digit of the result. 
Result so far: 117.0
If we take 371 away from 383, we end up with 12.
Include the next digit (6) from the dividend after 12, then repeat: 126 / 53

Let's proceed to step 5:
53 goes into 126 2 times with a remainder of 20.
Put 2 as the next digit of the answer. 
Result so far: 1172.0
Deduct 106 from 126 and we're left with 20.
Fetch the next digit (0) from the dividend, attach it to 20 and continue: 200 / 53

Step 6:
200 divided by 53 is 3 with a remainder of 41.
Record the quotient 3 as the next digit in the result. 
Result so far: 11723.0
Deduct 159 from 200 and we're left with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Going ahead to step 7:
53 goes into 410 7 times with a remainder of 39.
The next digit of our result is 7. 
Result so far: 11723.7
If we subtract 371 from 410, 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.

Step 8:
The number 53 fits into 390 7 times, leaving a remainder of 19.
Record the quotient 7 as the next digit in the result. 
Result so far: 11723.77
If we subtract 371 from 390, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

The final result is 11723.77 with a remainder of 0.019.