Let's divide 561652 by 42
The aim is to understand the frequency of 42 in 561652.

Going ahead to step 1:
If we divide 5 by 42, we get 0 and a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (6) from the dividend to 5 and continue with: 56 / 42

Going ahead to step 2:
When dividing 56 by 42, we get 1 with a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 42 from 56 to get 14.
Fetch the next digit (1) from the dividend, attach it to 14 and continue: 141 / 42

On to step 3:
If we divide 141 by 42, we get 3 and a remainder of 15.
Write down 3 as next digit of the result. 
Result so far: 13.0
The remainder is 15 after subtracting 126 from 141.
Grab the next digit (6) from the dividend, add it to 15, then carry on: 156 / 42

Advancing to step 4:
When dividing 156 by 42, we get 3 with a remainder of 30.
Record the quotient 3 as the next digit in the result. 
Result so far: 133.0
Deduct 126 from 156 and we're left with 30.
Grab the next digit (5) from the dividend, add it to 30, then carry on: 305 / 42

Step 5:
If we divide 305 by 42, we get 7 and a remainder of 11.
The number 7 becomes the next digit in our result. 
Result so far: 1337.0
The remainder is 11 after subtracting 294 from 305.
Append the next digit (2) from the dividend to 11 and continue with: 112 / 42

On to step 6:
42 can be fit into 112 2 times, resulting in a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 13372.0
If we take 84 away from 112, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 7:
When dividing 280 by 42, we get 6 with a remainder of 28.
Put 6 as the next digit of the answer. 
Result so far: 13372.6
The remainder is 28 after subtracting 252 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 8:
When dividing 280 by 42, we get 6 with a remainder of 28.
Write down 6 as next digit of the result. 
Result so far: 13372.66
The remainder is 28 after subtracting 252 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

After the division, we end up with 13372.66 and a remainder of 0.028.