We look at the division of 90749039 by 221 
We want to divide 90749039 by 221.

Step 1:
9 divided by 221 is 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 221

Let's proceed to step 2:
221 can be fit into 90 0 times, resulting in a remainder of 90.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 90 leaves us with 90.
Take the next digit (7) from the dividend and append it to 90, then repeat: 907 / 221

Moving on to step 3:
The number 221 fits into 907 4 times, leaving a remainder of 23.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 884 away from 907, we end up with 23.
Take the next digit (4) from the dividend and append it to 23, then repeat: 234 / 221

Step 4:
If we divide 234 by 221, we get 1 and a remainder of 13.
Write down 1 as next digit of the result. 
Result so far: 41.0
Subtract 221 from 234 to get 13.
Take the next digit (9) from the dividend and append it to 13, then repeat: 139 / 221

Moving on to step 5:
If we divide 139 by 221, we get 0 and a remainder of 139.
Record the quotient 0 as the next digit in the result. 
Result so far: 410.0
If we take 0 away from 139, we end up with 139.
Fetch the next digit (0) from the dividend, attach it to 139 and continue: 1390 / 221

On to step 6:
The number 221 fits into 1390 6 times, leaving a remainder of 64.
Record the quotient 6 as the next digit in the result. 
Result so far: 4106.0
The remainder is 64 after subtracting 1326 from 1390.
Grab the next digit (3) from the dividend, add it to 64, then carry on: 643 / 221

Step 7:
221 can be fit into 643 2 times, resulting in a remainder of 201.
Put 2 as the next digit of the answer. 
Result so far: 41062.0
Deduct 442 from 643 and we're left with 201.
Fetch the next digit (9) from the dividend, attach it to 201 and continue: 2019 / 221

Let's proceed to step 8:
The number 221 fits into 2019 9 times, leaving a remainder of 30.
Record the quotient 9 as the next digit in the result. 
Result so far: 410629.0
If we take 1989 away from 2019, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 9:
If we divide 300 by 221, we get 1 and a remainder of 79.
The number 1 becomes the next digit in our result. 
Result so far: 410629.1
The remainder is 79 after subtracting 221 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 790, and continue the process.

Going ahead to step 10:
221 goes into 790 3 times with a remainder of 127.
Record the quotient 3 as the next digit in the result. 
Result so far: 410629.13
The remainder is 127 after subtracting 663 from 790.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

On to step 11:
1270 divided by 221 is 5 with a remainder of 165.
Record the quotient 5 as the next digit in the result. 
Result so far: 410629.135
The remainder is 165 after subtracting 1105 from 1270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

On to step 12:
When dividing 1650 by 221, we get 7 with a remainder of 103.
The number 7 becomes the next digit in our result. 
Result so far: 410629.1357
If we take 1547 away from 1650, we end up with 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Let's proceed to step 13:
If we divide 1030 by 221, we get 4 and a remainder of 146.
Record the quotient 4 as the next digit in the result. 
Result so far: 410629.13574
Subtract 884 from 1030 to get 146.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1460, and continue the process.

Advancing to step 14:
221 can be fit into 1460 6 times, resulting in a remainder of 134.
The next digit of our result is 6. 
Result so far: 410629.135746
Subtract 1326 from 1460 to get 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Advancing to step 15:
The number 221 fits into 1340 6 times, leaving a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 410629.1357466
If we take 1326 away from 1340, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The final outcome is 410629.1357466, with a leftover of 1.4e-07.