Let's divide 81000228 by 642
Our goal is to divide 81000228 by 642.

Advancing to step 1:
8 divided by 642 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 642

Let's proceed to step 2:
642 goes into 81 0 times with a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 81 to get 81.
Include the next digit (0) from the dividend after 81, then repeat: 810 / 642

Moving on to step 3:
642 goes into 810 1 times with a remainder of 168.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 168 after subtracting 642 from 810.
Take the next digit (0) from the dividend and append it to 168, then repeat: 1680 / 642

Step 4:
The number 642 fits into 1680 2 times, leaving a remainder of 396.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
The remainder is 396 after subtracting 1284 from 1680.
Fetch the next digit (0) from the dividend, attach it to 396 and continue: 3960 / 642

Going ahead to step 5:
3960 divided by 642 is 6 with a remainder of 108.
The number 6 becomes the next digit in our result. 
Result so far: 126.0
Subtract 3852 from 3960 to get 108.
Take the next digit (2) from the dividend and append it to 108, then repeat: 1082 / 642

On to step 6:
The number 642 fits into 1082 1 times, leaving a remainder of 440.
Put 1 as the next digit of the answer. 
Result so far: 1261.0
The remainder is 440 after subtracting 642 from 1082.
Grab the next digit (2) from the dividend, add it to 440, then carry on: 4402 / 642

Step 7:
4402 divided by 642 is 6 with a remainder of 550.
Write down 6 as next digit of the result. 
Result so far: 12616.0
Subtract 3852 from 4402 to get 550.
Include the next digit (8) from the dividend after 550, then repeat: 5508 / 642

Step 8:
5508 divided by 642 is 8 with a remainder of 372.
Record the quotient 8 as the next digit in the result. 
Result so far: 126168.0
If we take 5136 away from 5508, we end up with 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Advancing to step 9:
642 can be fit into 3720 5 times, resulting in a remainder of 510.
The next digit of our result is 5. 
Result so far: 126168.5
Subtracting 3210 from 3720 leaves us with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Moving on to step 10:
5100 divided by 642 is 7 with a remainder of 606.
Record the quotient 7 as the next digit in the result. 
Result so far: 126168.57
Subtracting 4494 from 5100 leaves us with 606.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6060, and continue the process.

On to step 11:
When dividing 6060 by 642, we get 9 with a remainder of 282.
The number 9 becomes the next digit in our result. 
Result so far: 126168.579
The remainder is 282 after subtracting 5778 from 6060.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2820, and continue the process.

Let's proceed to step 12:
The number 642 fits into 2820 4 times, leaving a remainder of 252.
Record the quotient 4 as the next digit in the result. 
Result so far: 126168.5794
If we take 2568 away from 2820, we end up with 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Let's proceed to step 13:
If we divide 2520 by 642, we get 3 and a remainder of 594.
Write down 3 as next digit of the result. 
Result so far: 126168.57943
Subtracting 1926 from 2520 leaves us with 594.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5940, and continue the process.

Let's proceed to step 14:
When dividing 5940 by 642, we get 9 with a remainder of 162.
Record the quotient 9 as the next digit in the result. 
Result so far: 126168.579439
If we take 5778 away from 5940, we end up with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

On to step 15:
If we divide 1620 by 642, we get 2 and a remainder of 336.
The number 2 becomes the next digit in our result. 
Result so far: 126168.5794392
The remainder is 336 after subtracting 1284 from 1620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Step 16:
The number 642 fits into 3360 5 times, leaving a remainder of 150.
Put 5 as the next digit of the answer. 
Result so far: 126168.57943925
The remainder is 150 after subtracting 3210 from 3360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

The final outcome is 126168.57943925, with a leftover of 1.5e-07.