We're dividing 170422 by 99 
Let's see how many times 99 fits into 170422.

Going ahead to step 1:
1 divided by 99 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 99

Advancing to step 2:
99 goes into 17 0 times with a remainder of 17.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 17 to get 17.
Bring next digit (0) of the dividend behind the 17 and repeat the process: 170 / 99

Step 3:
99 goes into 170 1 times with a remainder of 71.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 99 from 170, we get 71.
Grab the next digit (4) from the dividend, add it to 71, then carry on: 714 / 99

Going ahead to step 4:
99 can be fit into 714 7 times, resulting in a remainder of 21.
Put 7 as the next digit of the answer. 
Result so far: 17.0
The remainder is 21 after subtracting 693 from 714.
Grab the next digit (2) from the dividend, add it to 21, then carry on: 212 / 99

Step 5:
212 divided by 99 is 2 with a remainder of 14.
Use 2 as the next digit of our solution. 
Result so far: 172.0
Deduct 198 from 212 and we're left with 14.
Fetch the next digit (2) from the dividend, attach it to 14 and continue: 142 / 99

On to step 6:
99 goes into 142 1 times with a remainder of 43.
The number 1 becomes the next digit in our result. 
Result so far: 1721.0
If we take 99 away from 142, we end up with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 7:
99 can be fit into 430 4 times, resulting in a remainder of 34.
Record the quotient 4 as the next digit in the result. 
Result so far: 1721.4
The remainder is 34 after subtracting 396 from 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 8:
340 divided by 99 is 3 with a remainder of 43.
The next digit of our result is 3. 
Result so far: 1721.43
Subtract 297 from 340 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 9:
430 divided by 99 is 4 with a remainder of 34.
The number 4 becomes the next digit in our result. 
Result so far: 1721.434
Subtract 396 from 430 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 10:
99 can be fit into 340 3 times, resulting in a remainder of 43.
The number 3 becomes the next digit in our result. 
Result so far: 1721.4343
If we subtract 297 from 340, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 11:
If we divide 430 by 99, we get 4 and a remainder of 34.
Write down 4 as next digit of the result. 
Result so far: 1721.43434
Subtract 396 from 430 to get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 12:
99 goes into 340 3 times with a remainder of 43.
Write down 3 as next digit of the result. 
Result so far: 1721.434343
Deduct 297 from 340 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 13:
99 can be fit into 430 4 times, resulting in a remainder of 34.
Use 4 as the next digit of our solution. 
Result so far: 1721.4343434
If we subtract 396 from 430, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 14:
99 goes into 340 3 times with a remainder of 43.
Write down 3 as next digit of the result. 
Result so far: 1721.43434343
If we subtract 297 from 340, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

After the division, we end up with 1721.43434343 and a remainder of 4.3e-08.