Let's divide 21554152 by 642
Our goal is to divide 21554152 by 642.

Let's proceed to step 1:
642 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 642

Let's proceed to step 2:
When dividing 21 by 642, we get 0 with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Include the next digit (5) from the dividend after 21, then repeat: 215 / 642

Advancing to step 3:
642 can be fit into 215 0 times, resulting in a remainder of 215.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 215 after subtracting 0 from 215.
Bring next digit (5) of the dividend behind the 215 and repeat the process: 2155 / 642

On to step 4:
When dividing 2155 by 642, we get 3 with a remainder of 229.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 1926 from 2155 leaves us with 229.
Grab the next digit (4) from the dividend, add it to 229, then carry on: 2294 / 642

Advancing to step 5:
642 goes into 2294 3 times with a remainder of 368.
Write down 3 as next digit of the result. 
Result so far: 33.0
If we take 1926 away from 2294, we end up with 368.
Fetch the next digit (1) from the dividend, attach it to 368 and continue: 3681 / 642

Let's proceed to step 6:
When dividing 3681 by 642, we get 5 with a remainder of 471.
Record the quotient 5 as the next digit in the result. 
Result so far: 335.0
The remainder is 471 after subtracting 3210 from 3681.
Take the next digit (5) from the dividend and append it to 471, then repeat: 4715 / 642

Let's proceed to step 7:
642 goes into 4715 7 times with a remainder of 221.
Record the quotient 7 as the next digit in the result. 
Result so far: 3357.0
Deduct 4494 from 4715 and we're left with 221.
Include the next digit (2) from the dividend after 221, then repeat: 2212 / 642

On to step 8:
642 can be fit into 2212 3 times, resulting in a remainder of 286.
Write down 3 as next digit of the result. 
Result so far: 33573.0
Subtracting 1926 from 2212 leaves us with 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Going ahead to step 9:
642 can be fit into 2860 4 times, resulting in a remainder of 292.
Record the quotient 4 as the next digit in the result. 
Result so far: 33573.4
If we subtract 2568 from 2860, we get 292.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Advancing to step 10:
When dividing 2920 by 642, we get 4 with a remainder of 352.
Use 4 as the next digit of our solution. 
Result so far: 33573.44
If we subtract 2568 from 2920, we get 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

The final outcome is 33573.44, with a leftover of 0.352.