We're dividing 15662021 by 198 
We want to divide 15662021 by 198.

Moving on to step 1:
When dividing 1 by 198, we get 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 198

On to step 2:
198 can be fit into 15 0 times, resulting in a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Append the next digit (6) from the dividend to 15 and continue with: 156 / 198

Moving on to step 3:
If we divide 156 by 198, we get 0 and a remainder of 156.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 156 leaves us with 156.
Take the next digit (6) from the dividend and append it to 156, then repeat: 1566 / 198

Let's proceed to step 4:
When dividing 1566 by 198, we get 7 with a remainder of 180.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtracting 1386 from 1566 leaves us with 180.
Fetch the next digit (2) from the dividend, attach it to 180 and continue: 1802 / 198

On to step 5:
If we divide 1802 by 198, we get 9 and a remainder of 20.
The next digit of our result is 9. 
Result so far: 79.0
Deduct 1782 from 1802 and we're left with 20.
Take the next digit (0) from the dividend and append it to 20, then repeat: 200 / 198

Let's proceed to step 6:
The number 198 fits into 200 1 times, leaving a remainder of 2.
The next digit of our result is 1. 
Result so far: 791.0
If we take 198 away from 200, we end up with 2.
Grab the next digit (2) from the dividend, add it to 2, then carry on: 22 / 198

Moving on to step 7:
When dividing 22 by 198, we get 0 with a remainder of 22.
The number 0 becomes the next digit in our result. 
Result so far: 7910.0
Subtracting 0 from 22 leaves us with 22.
Grab the next digit (1) from the dividend, add it to 22, then carry on: 221 / 198

On to step 8:
198 goes into 221 1 times with a remainder of 23.
Record the quotient 1 as the next digit in the result. 
Result so far: 79101.0
The remainder is 23 after subtracting 198 from 221.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 9:
If we divide 230 by 198, we get 1 and a remainder of 32.
Put 1 as the next digit of the answer. 
Result so far: 79101.1
Subtracting 198 from 230 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 10:
198 can be fit into 320 1 times, resulting in a remainder of 122.
The number 1 becomes the next digit in our result. 
Result so far: 79101.11
Subtract 198 from 320 to get 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

The final outcome is 79101.11, with a leftover of 0.122.