Let's divide 42170 by 98
Our goal is to divide 42170 by 98.

Advancing to step 1:
98 goes into 4 0 times with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 98

Step 2:
If we divide 42 by 98, we get 0 and a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Include the next digit (1) from the dividend after 42, then repeat: 421 / 98

Moving on to step 3:
98 goes into 421 4 times with a remainder of 29.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtracting 392 from 421 leaves us with 29.
Append the next digit (7) from the dividend to 29 and continue with: 297 / 98

Advancing to step 4:
If we divide 297 by 98, we get 3 and a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 43.0
If we take 294 away from 297, we end up with 3.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 98

Going ahead to step 5:
The number 98 fits into 30 0 times, leaving a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 430.0
Deduct 0 from 30 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.

Moving on to step 6:
The number 98 fits into 300 3 times, leaving a remainder of 6.
The next digit of our result is 3. 
Result so far: 430.3
If we take 294 away from 300, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 7:
98 can be fit into 60 0 times, resulting in a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 430.3
If we subtract 0 from 60, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 8:
600 divided by 98 is 6 with a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 430.306
If we take 588 away from 600, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 9:
98 can be fit into 120 1 times, resulting in a remainder of 22.
Record the quotient 1 as the next digit in the result. 
Result so far: 430.3061
The remainder is 22 after subtracting 98 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 10:
98 can be fit into 220 2 times, resulting in a remainder of 24.
The next digit of our result is 2. 
Result so far: 430.30612
If we take 196 away from 220, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 11:
If we divide 240 by 98, we get 2 and a remainder of 44.
Record the quotient 2 as the next digit in the result. 
Result so far: 430.306122
If we take 196 away from 240, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

The final result is 430.306122 with a remainder of 4.4e-06.