We look at the division of 53102120 by 587 
We want to divide 53102120 by 587.

On to step 1:
5 divided by 587 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Take the next digit (3) from the dividend and append it to 5, then repeat: 53 / 587

Moving on to step 2:
587 can be fit into 53 0 times, resulting in a remainder of 53.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 53, we get 53.
Take the next digit (1) from the dividend and append it to 53, then repeat: 531 / 587

Step 3:
When dividing 531 by 587, we get 0 with a remainder of 531.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 531 after subtracting 0 from 531.
Append the next digit (0) from the dividend to 531 and continue with: 5310 / 587

Going ahead to step 4:
When dividing 5310 by 587, we get 9 with a remainder of 27.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtract 5283 from 5310 to get 27.
Take the next digit (2) from the dividend and append it to 27, then repeat: 272 / 587

Advancing to step 5:
587 goes into 272 0 times with a remainder of 272.
Write down 0 as next digit of the result. 
Result so far: 90.0
If we take 0 away from 272, we end up with 272.
Take the next digit (1) from the dividend and append it to 272, then repeat: 2721 / 587

Let's proceed to step 6:
The number 587 fits into 2721 4 times, leaving a remainder of 373.
Record the quotient 4 as the next digit in the result. 
Result so far: 904.0
Subtracting 2348 from 2721 leaves us with 373.
Fetch the next digit (2) from the dividend, attach it to 373 and continue: 3732 / 587

On to step 7:
When dividing 3732 by 587, we get 6 with a remainder of 210.
Use 6 as the next digit of our solution. 
Result so far: 9046.0
The remainder is 210 after subtracting 3522 from 3732.
Fetch the next digit (0) from the dividend, attach it to 210 and continue: 2100 / 587

Going ahead to step 8:
2100 divided by 587 is 3 with a remainder of 339.
Put 3 as the next digit of the answer. 
Result so far: 90463.0
The remainder is 339 after subtracting 1761 from 2100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3390, and continue the process.

Let's proceed to step 9:
3390 divided by 587 is 5 with a remainder of 455.
Write down 5 as next digit of the result. 
Result so far: 90463.5
If we subtract 2935 from 3390, we get 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

Moving on to step 10:
587 goes into 4550 7 times with a remainder of 441.
Use 7 as the next digit of our solution. 
Result so far: 90463.57
The remainder is 441 after subtracting 4109 from 4550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4410, and continue the process.

Let's proceed to step 11:
The number 587 fits into 4410 7 times, leaving a remainder of 301.
Put 7 as the next digit of the answer. 
Result so far: 90463.577
If we take 4109 away from 4410, we end up with 301.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3010, and continue the process.

Our division results in 90463.577 with a remaining 0.0301.