415420 ÷ 84 
We want to figure out the number of times 415420 can be divided by 84.

Moving on to step 1:
84 goes into 4 0 times with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Take the next digit (1) from the dividend and append it to 4, then repeat: 41 / 84

Moving on to step 2:
The number 84 fits into 41 0 times, leaving a remainder of 41.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 41 leaves us with 41.
Take the next digit (5) from the dividend and append it to 41, then repeat: 415 / 84

Going ahead to step 3:
415 divided by 84 is 4 with a remainder of 79.
Use 4 as the next digit of our solution. 
Result so far: 4.0
The remainder is 79 after subtracting 336 from 415.
Fetch the next digit (4) from the dividend, attach it to 79 and continue: 794 / 84

Advancing to step 4:
84 goes into 794 9 times with a remainder of 38.
Use 9 as the next digit of our solution. 
Result so far: 49.0
Subtract 756 from 794 to get 38.
Take the next digit (2) from the dividend and append it to 38, then repeat: 382 / 84

Advancing to step 5:
84 goes into 382 4 times with a remainder of 46.
The next digit of our result is 4. 
Result so far: 494.0
The remainder is 46 after subtracting 336 from 382.
Take the next digit (0) from the dividend and append it to 46, then repeat: 460 / 84

On to step 6:
The number 84 fits into 460 5 times, leaving a remainder of 40.
The number 5 becomes the next digit in our result. 
Result so far: 4945.0
Subtract 420 from 460 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.

Step 7:
84 can be fit into 400 4 times, resulting in a remainder of 64.
Put 4 as the next digit of the answer. 
Result so far: 4945.4
If we take 336 away from 400, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 8:
640 divided by 84 is 7 with a remainder of 52.
The number 7 becomes the next digit in our result. 
Result so far: 4945.47
If we subtract 588 from 640, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 9:
84 can be fit into 520 6 times, resulting in a remainder of 16.
Write down 6 as next digit of the result. 
Result so far: 4945.476
If we take 504 away from 520, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 10:
The number 84 fits into 160 1 times, leaving a remainder of 76.
Write down 1 as next digit of the result. 
Result so far: 4945.4761
The remainder is 76 after subtracting 84 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Step 11:
When dividing 760 by 84, we get 9 with a remainder of 4.
Record the quotient 9 as the next digit in the result. 
Result so far: 4945.47619
Subtracting 756 from 760 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 12:
84 can be fit into 40 0 times, resulting in a remainder of 40.
The next digit of our result is 0. 
Result so far: 4945.47619
If we subtract 0 from 40, we 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.

Moving on to step 13:
When dividing 400 by 84, we get 4 with a remainder of 64.
Record the quotient 4 as the next digit in the result. 
Result so far: 4945.4761904
If we take 336 away from 400, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Advancing to step 14:
When dividing 640 by 84, we get 7 with a remainder of 52.
Use 7 as the next digit of our solution. 
Result so far: 4945.47619047
Subtract 588 from 640 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

After the division, we end up with 4945.47619047 and a remainder of 5.2e-08.