We divide 404172 by 84
We want to figure out the number of times 404172 can be divided by 84.

Advancing to step 1:
The number 84 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 84

Step 2:
The number 84 fits into 40 0 times, leaving a remainder of 40.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 40 to get 40.
Fetch the next digit (4) from the dividend, attach it to 40 and continue: 404 / 84

Moving on to step 3:
84 goes into 404 4 times with a remainder of 68.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 336 away from 404, we end up with 68.
Grab the next digit (1) from the dividend, add it to 68, then carry on: 681 / 84

Going ahead to step 4:
If we divide 681 by 84, we get 8 and a remainder of 9.
Write down 8 as next digit of the result. 
Result so far: 48.0
Deduct 672 from 681 and we're left with 9.
Bring next digit (7) of the dividend behind the 9 and repeat the process: 97 / 84

Let's proceed to step 5:
The number 84 fits into 97 1 times, leaving a remainder of 13.
Use 1 as the next digit of our solution. 
Result so far: 481.0
If we take 84 away from 97, we end up with 13.
Append the next digit (2) from the dividend to 13 and continue with: 132 / 84

On to step 6:
If we divide 132 by 84, we get 1 and a remainder of 48.
The number 1 becomes the next digit in our result. 
Result so far: 4811.0
Deduct 84 from 132 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 7:
When dividing 480 by 84, we get 5 with a remainder of 60.
The next digit of our result is 5. 
Result so far: 4811.5
The remainder is 60 after subtracting 420 from 480.
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:
If we divide 600 by 84, we get 7 and a remainder of 12.
The number 7 becomes the next digit in our result. 
Result so far: 4811.57
Subtracting 588 from 600 leaves us 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.

Let's proceed to step 9:
If we divide 120 by 84, we get 1 and a remainder of 36.
The next digit of our result is 1. 
Result so far: 4811.571
Subtracting 84 from 120 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 10:
The number 84 fits into 360 4 times, leaving a remainder of 24.
The number 4 becomes the next digit in our result. 
Result so far: 4811.5714
Subtracting 336 from 360 leaves us 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.

Going ahead to step 11:
When dividing 240 by 84, we get 2 with a remainder of 72.
Write down 2 as next digit of the result. 
Result so far: 4811.57142
Subtracting 168 from 240 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Advancing to step 12:
The number 84 fits into 720 8 times, leaving a remainder of 48.
The next digit of our result is 8. 
Result so far: 4811.571428
If we take 672 away from 720, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 13:
84 goes into 480 5 times with a remainder of 60.
Use 5 as the next digit of our solution. 
Result so far: 4811.5714285
If we take 420 away from 480, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 14:
84 goes into 600 7 times with a remainder of 12.
Use 7 as the next digit of our solution. 
Result so far: 4811.57142857
If we subtract 588 from 600, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final outcome is 4811.57142857, with a leftover of 1.2e-08.