We look at the division of 33171472 by 420 
Our goal is to divide 33171472 by 420.

Going ahead to step 1:
When dividing 3 by 420, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Grab the next digit (3) from the dividend, add it to 3, then carry on: 33 / 420

Moving on to step 2:
If we divide 33 by 420, we get 0 and a remainder of 33.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 33 to get 33.
Fetch the next digit (1) from the dividend, attach it to 33 and continue: 331 / 420

Going ahead to step 3:
420 can be fit into 331 0 times, resulting in a remainder of 331.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 331 and we're left with 331.
Take the next digit (7) from the dividend and append it to 331, then repeat: 3317 / 420

On to step 4:
If we divide 3317 by 420, we get 7 and a remainder of 377.
Use 7 as the next digit of our solution. 
Result so far: 7.0
The remainder is 377 after subtracting 2940 from 3317.
Take the next digit (1) from the dividend and append it to 377, then repeat: 3771 / 420

Let's proceed to step 5:
3771 divided by 420 is 8 with a remainder of 411.
The number 8 becomes the next digit in our result. 
Result so far: 78.0
Subtracting 3360 from 3771 leaves us with 411.
Include the next digit (4) from the dividend after 411, then repeat: 4114 / 420

Going ahead to step 6:
The number 420 fits into 4114 9 times, leaving a remainder of 334.
The number 9 becomes the next digit in our result. 
Result so far: 789.0
Subtract 3780 from 4114 to get 334.
Append the next digit (7) from the dividend to 334 and continue with: 3347 / 420

Let's proceed to step 7:
If we divide 3347 by 420, we get 7 and a remainder of 407.
Use 7 as the next digit of our solution. 
Result so far: 7897.0
Subtracting 2940 from 3347 leaves us with 407.
Take the next digit (2) from the dividend and append it to 407, then repeat: 4072 / 420

Step 8:
The number 420 fits into 4072 9 times, leaving a remainder of 292.
Write down 9 as next digit of the result. 
Result so far: 78979.0
The remainder is 292 after subtracting 3780 from 4072.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

On to step 9:
420 can be fit into 2920 6 times, resulting in a remainder of 400.
Put 6 as the next digit of the answer. 
Result so far: 78979.6
Subtract 2520 from 2920 to get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Moving on to step 10:
4000 divided by 420 is 9 with a remainder of 220.
The number 9 becomes the next digit in our result. 
Result so far: 78979.69
The remainder is 220 after subtracting 3780 from 4000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Moving on to step 11:
420 goes into 2200 5 times with a remainder of 100.
Record the quotient 5 as the next digit in the result. 
Result so far: 78979.695
If we subtract 2100 from 2200, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 12:
When dividing 1000 by 420, we get 2 with a remainder of 160.
Put 2 as the next digit of the answer. 
Result so far: 78979.6952
Subtract 840 from 1000 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Moving on to step 13:
If we divide 1600 by 420, we get 3 and a remainder of 340.
The next digit of our result is 3. 
Result so far: 78979.69523
The remainder is 340 after subtracting 1260 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Advancing to step 14:
420 can be fit into 3400 8 times, resulting in a remainder of 40.
The number 8 becomes the next digit in our result. 
Result so far: 78979.695238
Subtract 3360 from 3400 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 15:
If we divide 400 by 420, we get 0 and a remainder of 400.
Write down 0 as next digit of the result. 
Result so far: 78979.695238
If we take 0 away from 400, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Going ahead to step 16:
If we divide 4000 by 420, we get 9 and a remainder of 220.
Use 9 as the next digit of our solution. 
Result so far: 78979.69523809
Deduct 3780 from 4000 and we're left with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

The final outcome is 78979.69523809, with a leftover of 2.2e-07.