84228204 divided by 642 
The aim is to understand the frequency of 642 in 84228204.

Step 1:
When dividing 8 by 642, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (4) from the dividend to 8 and continue with: 84 / 642

Step 2:
When dividing 84 by 642, we get 0 with a remainder of 84.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 84 to get 84.
Include the next digit (2) from the dividend after 84, then repeat: 842 / 642

Let's proceed to step 3:
642 goes into 842 1 times with a remainder of 200.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 642 from 842, we get 200.
Include the next digit (2) from the dividend after 200, then repeat: 2002 / 642

On to step 4:
642 goes into 2002 3 times with a remainder of 76.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
If we take 1926 away from 2002, we end up with 76.
Bring next digit (8) of the dividend behind the 76 and repeat the process: 768 / 642

Moving on to step 5:
642 can be fit into 768 1 times, resulting in a remainder of 126.
The next digit of our result is 1. 
Result so far: 131.0
Deduct 642 from 768 and we're left with 126.
Take the next digit (2) from the dividend and append it to 126, then repeat: 1262 / 642

On to step 6:
When dividing 1262 by 642, we get 1 with a remainder of 620.
Record the quotient 1 as the next digit in the result. 
Result so far: 1311.0
If we subtract 642 from 1262, we get 620.
Fetch the next digit (0) from the dividend, attach it to 620 and continue: 6200 / 642

Advancing to step 7:
642 goes into 6200 9 times with a remainder of 422.
Put 9 as the next digit of the answer. 
Result so far: 13119.0
If we take 5778 away from 6200, we end up with 422.
Grab the next digit (4) from the dividend, add it to 422, then carry on: 4224 / 642

Moving on to step 8:
642 goes into 4224 6 times with a remainder of 372.
Record the quotient 6 as the next digit in the result. 
Result so far: 131196.0
Subtracting 3852 from 4224 leaves us with 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

On to step 9:
3720 divided by 642 is 5 with a remainder of 510.
The number 5 becomes the next digit in our result. 
Result so far: 131196.5
Deduct 3210 from 3720 and we're left with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Advancing to step 10:
When dividing 5100 by 642, we get 7 with a remainder of 606.
The number 7 becomes the next digit in our result. 
Result so far: 131196.57
Subtract 4494 from 5100 to get 606.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6060, and continue the process.

Moving on to step 11:
If we divide 6060 by 642, we get 9 and a remainder of 282.
Record the quotient 9 as the next digit in the result. 
Result so far: 131196.579
Deduct 5778 from 6060 and we're left with 282.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2820, and continue the process.

Let's proceed to step 12:
2820 divided by 642 is 4 with a remainder of 252.
The next digit of our result is 4. 
Result so far: 131196.5794
The remainder is 252 after subtracting 2568 from 2820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

Step 13:
2520 divided by 642 is 3 with a remainder of 594.
The next digit of our result is 3. 
Result so far: 131196.57943
The remainder is 594 after subtracting 1926 from 2520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5940, and continue the process.

Advancing to step 14:
The number 642 fits into 5940 9 times, leaving a remainder of 162.
The number 9 becomes the next digit in our result. 
Result so far: 131196.579439
If we take 5778 away from 5940, we end up with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

Advancing to step 15:
The number 642 fits into 1620 2 times, leaving a remainder of 336.
Put 2 as the next digit of the answer. 
Result so far: 131196.5794392
If we subtract 1284 from 1620, we get 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

On to step 16:
3360 divided by 642 is 5 with a remainder of 150.
Record the quotient 5 as the next digit in the result. 
Result so far: 131196.57943925
The remainder is 150 after subtracting 3210 from 3360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

The final outcome is 131196.57943925, with a leftover of 1.5e-07.