We're dividing 21130053 by 642 
Our goal is to divide 21130053 by 642.

Moving on to step 1:
2 divided by 642 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 642

Step 2:
642 can be fit into 21 0 times, resulting in a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Append the next digit (1) from the dividend to 21 and continue with: 211 / 642

Advancing to step 3:
If we divide 211 by 642, we get 0 and a remainder of 211.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 211 leaves us with 211.
Append the next digit (3) from the dividend to 211 and continue with: 2113 / 642

On to step 4:
When dividing 2113 by 642, we get 3 with a remainder of 187.
Write down 3 as next digit of the result. 
Result so far: 3.0
The remainder is 187 after subtracting 1926 from 2113.
Grab the next digit (0) from the dividend, add it to 187, then carry on: 1870 / 642

Moving on to step 5:
The number 642 fits into 1870 2 times, leaving a remainder of 586.
The next digit of our result is 2. 
Result so far: 32.0
Subtract 1284 from 1870 to get 586.
Take the next digit (0) from the dividend and append it to 586, then repeat: 5860 / 642

Going ahead to step 6:
The number 642 fits into 5860 9 times, leaving a remainder of 82.
Record the quotient 9 as the next digit in the result. 
Result so far: 329.0
Deduct 5778 from 5860 and we're left with 82.
Grab the next digit (5) from the dividend, add it to 82, then carry on: 825 / 642

Moving on to step 7:
642 goes into 825 1 times with a remainder of 183.
The next digit of our result is 1. 
Result so far: 3291.0
If we take 642 away from 825, we end up with 183.
Bring next digit (3) of the dividend behind the 183 and repeat the process: 1833 / 642

Advancing to step 8:
1833 divided by 642 is 2 with a remainder of 549.
The number 2 becomes the next digit in our result. 
Result so far: 32912.0
Subtracting 1284 from 1833 leaves us with 549.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5490, and continue the process.

Step 9:
642 goes into 5490 8 times with a remainder of 354.
The next digit of our result is 8. 
Result so far: 32912.8
Subtracting 5136 from 5490 leaves us with 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3540, and continue the process.

Going ahead to step 10:
When dividing 3540 by 642, we get 5 with a remainder of 330.
Write down 5 as next digit of the result. 
Result so far: 32912.85
Subtracting 3210 from 3540 leaves us with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Let's proceed to step 11:
642 goes into 3300 5 times with a remainder of 90.
Use 5 as the next digit of our solution. 
Result so far: 32912.855
If we subtract 3210 from 3300, we get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Our division results in 32912.855 with a remaining 0.009.