12420720 divided by 84 
We want to divide 12420720 by 84.

Going ahead to step 1:
84 can be fit into 1 0 times, resulting in a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 84

Going ahead to step 2:
84 can be fit into 12 0 times, resulting in a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Bring next digit (4) of the dividend behind the 12 and repeat the process: 124 / 84

Let's proceed to step 3:
When dividing 124 by 84, we get 1 with a remainder of 40.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 84 from 124 and we're left with 40.
Bring next digit (2) of the dividend behind the 40 and repeat the process: 402 / 84

On to step 4:
402 divided by 84 is 4 with a remainder of 66.
Put 4 as the next digit of the answer. 
Result so far: 14.0
Subtract 336 from 402 to get 66.
Grab the next digit (0) from the dividend, add it to 66, then carry on: 660 / 84

Moving on to step 5:
If we divide 660 by 84, we get 7 and a remainder of 72.
The number 7 becomes the next digit in our result. 
Result so far: 147.0
Subtracting 588 from 660 leaves us with 72.
Include the next digit (7) from the dividend after 72, then repeat: 727 / 84

Let's proceed to step 6:
If we divide 727 by 84, we get 8 and a remainder of 55.
The number 8 becomes the next digit in our result. 
Result so far: 1478.0
If we subtract 672 from 727, we get 55.
Append the next digit (2) from the dividend to 55 and continue with: 552 / 84

Moving on to step 7:
552 divided by 84 is 6 with a remainder of 48.
Put 6 as the next digit of the answer. 
Result so far: 14786.0
Deduct 504 from 552 and we're left with 48.
Bring next digit (0) of the dividend behind the 48 and repeat the process: 480 / 84

Let's proceed to step 8:
84 goes into 480 5 times with a remainder of 60.
Record the quotient 5 as the next digit in the result. 
Result so far: 147865.0
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 9:
The number 84 fits into 600 7 times, leaving a remainder of 12.
Use 7 as the next digit of our solution. 
Result so far: 147865.7
The remainder is 12 after subtracting 588 from 600.
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 10:
The number 84 fits into 120 1 times, leaving a remainder of 36.
The next digit of our result is 1. 
Result so far: 147865.71
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.

Moving on to step 11:
When dividing 360 by 84, we get 4 with a remainder of 24.
Record the quotient 4 as the next digit in the result. 
Result so far: 147865.714
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.

On to step 12:
The number 84 fits into 240 2 times, leaving a remainder of 72.
Write down 2 as next digit of the result. 
Result so far: 147865.7142
The remainder is 72 after subtracting 168 from 240.
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 13:
The number 84 fits into 720 8 times, leaving a remainder of 48.
Record the quotient 8 as the next digit in the result. 
Result so far: 147865.71428
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.

Let's proceed to step 14:
84 goes into 480 5 times with a remainder of 60.
Use 5 as the next digit of our solution. 
Result so far: 147865.714285
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.

Advancing to step 15:
84 goes into 600 7 times with a remainder of 12.
Write down 7 as next digit of the result. 
Result so far: 147865.7142857
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.

Moving on to step 16:
If we divide 120 by 84, we get 1 and a remainder of 36.
Put 1 as the next digit of the answer. 
Result so far: 147865.71428571
Subtract 84 from 120 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

After the division, we end up with 147865.71428571 and a remainder of 3.6e-08.