We're dividing 883090 by 42 
The aim is to understand the frequency of 42 in 883090.

Step 1:
When dividing 8 by 42, we get 0 with a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (8) from the dividend to 8 and continue with: 88 / 42

Step 2:
42 can be fit into 88 2 times, resulting in a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 84 away from 88, we end up with 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 42

Advancing to step 3:
If we divide 43 by 42, we get 1 and a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 21.0
Subtract 42 from 43 to get 1.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 42

Step 4:
42 goes into 10 0 times with a remainder of 10.
The next digit of our result is 0. 
Result so far: 210.0
If we take 0 away from 10, we end up with 10.
Take the next digit (9) from the dividend and append it to 10, then repeat: 109 / 42

Moving on to step 5:
If we divide 109 by 42, we get 2 and a remainder of 25.
The next digit of our result is 2. 
Result so far: 2102.0
If we subtract 84 from 109, we get 25.
Take the next digit (0) from the dividend and append it to 25, then repeat: 250 / 42

Step 6:
The number 42 fits into 250 5 times, leaving a remainder of 40.
The next digit of our result is 5. 
Result so far: 21025.0
If we take 210 away from 250, 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:
400 divided by 42 is 9 with a remainder of 22.
The number 9 becomes the next digit in our result. 
Result so far: 21025.9
The remainder is 22 after subtracting 378 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

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: 21025.95
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.

Step 9:
The number 42 fits into 100 2 times, leaving a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 21025.952
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:
42 can be fit into 160 3 times, resulting in a remainder of 34.
Use 3 as the next digit of our solution. 
Result so far: 21025.9523
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:
If we divide 340 by 42, we get 8 and a remainder of 4.
The number 8 becomes the next digit in our result. 
Result so far: 21025.95238
Subtract 336 from 340 to get 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:
40 divided by 42 is 0 with a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 21025.95238
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.

Going ahead to step 13:
42 can be fit into 400 9 times, resulting in a remainder of 22.
The number 9 becomes the next digit in our result. 
Result so far: 21025.9523809
Subtract 378 from 400 to get 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 14:
220 divided by 42 is 5 with a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 21025.95238095
Subtracting 210 from 220 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final result is 21025.95238095 with a remainder of 1e-08.