426840 divided by 84 
The aim is to understand the frequency of 84 in 426840.

Going ahead to step 1:
If we divide 4 by 84, we get 0 and 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.
Append the next digit (2) from the dividend to 4 and continue with: 42 / 84

Let's proceed to step 2:
84 can be fit into 42 0 times, resulting in a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 42 to get 42.
Bring next digit (6) of the dividend behind the 42 and repeat the process: 426 / 84

Step 3:
426 divided by 84 is 5 with a remainder of 6.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
The remainder is 6 after subtracting 420 from 426.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 84

On to step 4:
84 goes into 68 0 times with a remainder of 68.
The number 0 becomes the next digit in our result. 
Result so far: 50.0
If we subtract 0 from 68, we get 68.
Include the next digit (4) from the dividend after 68, then repeat: 684 / 84

Step 5:
If we divide 684 by 84, we get 8 and a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 508.0
Subtract 672 from 684 to get 12.
Fetch the next digit (0) from the dividend, attach it to 12 and continue: 120 / 84

Moving on to step 6:
84 goes into 120 1 times with a remainder of 36.
Put 1 as the next digit of the answer. 
Result so far: 5081.0
Deduct 84 from 120 and we're left 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.

Advancing to step 7:
When dividing 360 by 84, we get 4 with a remainder of 24.
The number 4 becomes the next digit in our result. 
Result so far: 5081.4
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.

Moving on to step 8:
240 divided by 84 is 2 with a remainder of 72.
Use 2 as the next digit of our solution. 
Result so far: 5081.42
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.

Going ahead to step 9:
The number 84 fits into 720 8 times, leaving a remainder of 48.
The next digit of our result is 8. 
Result so far: 5081.428
Subtracting 672 from 720 leaves us 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.

Moving on to step 10:
When dividing 480 by 84, we get 5 with a remainder of 60.
Put 5 as the next digit of the answer. 
Result so far: 5081.4285
Subtract 420 from 480 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 11:
When dividing 600 by 84, we get 7 with a remainder of 12.
Put 7 as the next digit of the answer. 
Result so far: 5081.42857
Subtract 588 from 600 to 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.

On to step 12:
84 goes into 120 1 times with a remainder of 36.
Record the quotient 1 as the next digit in the result. 
Result so far: 5081.428571
If we subtract 84 from 120, we 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.

On to step 13:
If we divide 360 by 84, we get 4 and a remainder of 24.
Record the quotient 4 as the next digit in the result. 
Result so far: 5081.4285714
If we take 336 away from 360, we end up 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 14:
If we divide 240 by 84, we get 2 and a remainder of 72.
Use 2 as the next digit of our solution. 
Result so far: 5081.42857142
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.

The quotient of the division is 5081.42857142, and the remainder is 7.2e-08.