Let's divide 821602 by 42
The aim is to understand the frequency of 42 in 821602.

Step 1:
When dividing 8 by 42, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (2) from the dividend, attach it to 8 and continue: 82 / 42

Advancing to step 2:
42 can be fit into 82 1 times, resulting in a remainder of 40.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 42 from 82 to get 40.
Grab the next digit (1) from the dividend, add it to 40, then carry on: 401 / 42

Step 3:
401 divided by 42 is 9 with a remainder of 23.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
Subtract 378 from 401 to get 23.
Take the next digit (6) from the dividend and append it to 23, then repeat: 236 / 42

Going ahead to step 4:
When dividing 236 by 42, we get 5 with a remainder of 26.
Use 5 as the next digit of our solution. 
Result so far: 195.0
Subtracting 210 from 236 leaves us with 26.
Include the next digit (0) from the dividend after 26, then repeat: 260 / 42

Let's proceed to step 5:
42 goes into 260 6 times with a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 1956.0
The remainder is 8 after subtracting 252 from 260.
Append the next digit (2) from the dividend to 8 and continue with: 82 / 42

Step 6:
When dividing 82 by 42, we get 1 with a remainder of 40.
The next digit of our result is 1. 
Result so far: 19561.0
If we take 42 away from 82, we end up with 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:
42 goes into 400 9 times with a remainder of 22.
Write down 9 as next digit of the result. 
Result so far: 19561.9
Deduct 378 from 400 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 8:
When dividing 220 by 42, we get 5 with a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 19561.95
Subtract 210 from 220 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 9:
When dividing 100 by 42, we get 2 with a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 19561.952
If we subtract 84 from 100, we get 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:
160 divided by 42 is 3 with a remainder of 34.
The next digit of our result is 3. 
Result so far: 19561.9523
Subtracting 126 from 160 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Advancing to step 11:
42 goes into 340 8 times with a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 19561.95238
Subtracting 336 from 340 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.

Step 12:
42 can be fit into 40 0 times, resulting in a remainder of 40.
The next digit of our result is 0. 
Result so far: 19561.95238
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 13:
400 divided by 42 is 9 with a remainder of 22.
Write down 9 as next digit of the result. 
Result so far: 19561.9523809
Deduct 378 from 400 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 14:
220 divided by 42 is 5 with a remainder of 10.
The next digit of our result is 5. 
Result so far: 19561.95238095
If we subtract 210 from 220, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Our division results in 19561.95238095 with a remaining 1e-08.