Let's divide 79891023 by 198
Our goal is to divide 79891023 by 198.

Step 1:
The number 198 fits into 7 0 times, leaving a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (9) from the dividend after 7, then repeat: 79 / 198

On to step 2:
198 can be fit into 79 0 times, resulting in a remainder of 79.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 79, we get 79.
Append the next digit (8) from the dividend to 79 and continue with: 798 / 198

Advancing to step 3:
If we divide 798 by 198, we get 4 and a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 6 after subtracting 792 from 798.
Bring next digit (9) of the dividend behind the 6 and repeat the process: 69 / 198

Going ahead to step 4:
If we divide 69 by 198, we get 0 and a remainder of 69.
Write down 0 as next digit of the result. 
Result so far: 40.0
Deduct 0 from 69 and we're left with 69.
Bring next digit (1) of the dividend behind the 69 and repeat the process: 691 / 198

Going ahead to step 5:
If we divide 691 by 198, we get 3 and a remainder of 97.
Write down 3 as next digit of the result. 
Result so far: 403.0
Subtract 594 from 691 to get 97.
Take the next digit (0) from the dividend and append it to 97, then repeat: 970 / 198

Moving on to step 6:
The number 198 fits into 970 4 times, leaving a remainder of 178.
Write down 4 as next digit of the result. 
Result so far: 4034.0
Subtracting 792 from 970 leaves us with 178.
Append the next digit (2) from the dividend to 178 and continue with: 1782 / 198

Step 7:
If we divide 1782 by 198, we get 9 and a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 40349.0
If we take 1782 away from 1782, we end up with 0.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 198

On to step 8:
198 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 403490.0
Subtracting 0 from 3 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 9:
When dividing 30 by 198, we get 0 with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 403490.0
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 10:
198 can be fit into 300 1 times, resulting in a remainder of 102.
The number 1 becomes the next digit in our result. 
Result so far: 403490.01
Subtract 198 from 300 to get 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Advancing to step 11:
198 can be fit into 1020 5 times, resulting in a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 403490.015
Deduct 990 from 1020 and we're left 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.

Advancing to step 12:
198 can be fit into 300 1 times, resulting in a remainder of 102.
Write down 1 as next digit of the result. 
Result so far: 403490.0151
Subtract 198 from 300 to get 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

On to step 13:
When dividing 1020 by 198, we get 5 with a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 403490.01515
The remainder is 30 after subtracting 990 from 1020.
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 14:
198 goes into 300 1 times with a remainder of 102.
The next digit of our result is 1. 
Result so far: 403490.015151
If we subtract 198 from 300, we get 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

Step 15:
1020 divided by 198 is 5 with a remainder of 30.
Record the quotient 5 as the next digit in the result. 
Result so far: 403490.0151515
The remainder is 30 after subtracting 990 from 1020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 16:
If we divide 300 by 198, we get 1 and a remainder of 102.
Use 1 as the next digit of our solution. 
Result so far: 403490.01515151
The remainder is 102 after subtracting 198 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

The final result is 403490.01515151 with a remainder of 1.02e-07.