We're dividing 212170 by 55 
We want to figure out the number of times 212170 can be divided by 55.

Advancing to step 1:
55 goes into 2 0 times with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 55

Let's proceed to step 2:
If we divide 21 by 55, we get 0 and a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Include the next digit (2) from the dividend after 21, then repeat: 212 / 55

Going ahead to step 3:
212 divided by 55 is 3 with a remainder of 47.
The next digit of our result is 3. 
Result so far: 3.0
Subtract 165 from 212 to get 47.
Grab the next digit (1) from the dividend, add it to 47, then carry on: 471 / 55

Advancing to step 4:
55 can be fit into 471 8 times, resulting in a remainder of 31.
The number 8 becomes the next digit in our result. 
Result so far: 38.0
If we subtract 440 from 471, we get 31.
Include the next digit (7) from the dividend after 31, then repeat: 317 / 55

Advancing to step 5:
When dividing 317 by 55, we get 5 with a remainder of 42.
The next digit of our result is 5. 
Result so far: 385.0
If we take 275 away from 317, we end up with 42.
Fetch the next digit (0) from the dividend, attach it to 42 and continue: 420 / 55

Step 6:
55 can be fit into 420 7 times, resulting in a remainder of 35.
The number 7 becomes the next digit in our result. 
Result so far: 3857.0
The remainder is 35 after subtracting 385 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 7:
When dividing 350 by 55, we get 6 with a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 3857.6
The remainder is 20 after subtracting 330 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 8:
When dividing 200 by 55, we get 3 with a remainder of 35.
Use 3 as the next digit of our solution. 
Result so far: 3857.63
If we take 165 away from 200, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 9:
350 divided by 55 is 6 with a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 3857.636
Subtracting 330 from 350 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 10:
When dividing 200 by 55, we get 3 with a remainder of 35.
Record the quotient 3 as the next digit in the result. 
Result so far: 3857.6363
If we subtract 165 from 200, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 11:
If we divide 350 by 55, we get 6 and a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 3857.63636
The remainder is 20 after subtracting 330 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 12:
The number 55 fits into 200 3 times, leaving a remainder of 35.
The next digit of our result is 3. 
Result so far: 3857.636363
Subtract 165 from 200 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 13:
If we divide 350 by 55, we get 6 and a remainder of 20.
The next digit of our result is 6. 
Result so far: 3857.6363636
Deduct 330 from 350 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 14:
If we divide 200 by 55, we get 3 and a remainder of 35.
Write down 3 as next digit of the result. 
Result so far: 3857.63636363
The remainder is 35 after subtracting 165 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

The final result is 3857.63636363 with a remainder of 3.5e-08.