Let's divide 853960 by 42
The aim is to understand the frequency of 42 in 853960.

Going ahead to step 1:
8 divided by 42 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 42

Let's proceed to step 2:
85 divided by 42 is 2 with a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we take 84 away from 85, we end up with 1.
Grab the next digit (3) from the dividend, add it to 1, then carry on: 13 / 42

Moving on to step 3:
When dividing 13 by 42, we get 0 with a remainder of 13.
Put 0 as the next digit of the answer. 
Result so far: 20.0
If we subtract 0 from 13, we get 13.
Fetch the next digit (9) from the dividend, attach it to 13 and continue: 139 / 42

On to step 4:
42 can be fit into 139 3 times, resulting in a remainder of 13.
Use 3 as the next digit of our solution. 
Result so far: 203.0
Subtracting 126 from 139 leaves us with 13.
Append the next digit (6) from the dividend to 13 and continue with: 136 / 42

Advancing to step 5:
42 goes into 136 3 times with a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 2033.0
Deduct 126 from 136 and we're left with 10.
Fetch the next digit (0) from the dividend, attach it to 10 and continue: 100 / 42

Advancing to step 6:
When dividing 100 by 42, we get 2 with a remainder of 16.
Use 2 as the next digit of our solution. 
Result so far: 20332.0
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.

Moving on to step 7:
When dividing 160 by 42, we get 3 with a remainder of 34.
The number 3 becomes the next digit in our result. 
Result so far: 20332.3
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.

Going ahead to step 8:
42 goes into 340 8 times with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 20332.38
If we subtract 336 from 340, we 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.

Let's proceed to step 9:
42 can be fit into 40 0 times, resulting in a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 20332.38
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.

Step 10:
400 divided by 42 is 9 with a remainder of 22.
The number 9 becomes the next digit in our result. 
Result so far: 20332.3809
If we take 378 away from 400, we end up 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 11:
If we divide 220 by 42, we get 5 and a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 20332.38095
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 12:
100 divided by 42 is 2 with a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 20332.380952
Subtracting 84 from 100 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 13:
160 divided by 42 is 3 with a remainder of 34.
The number 3 becomes the next digit in our result. 
Result so far: 20332.3809523
If we subtract 126 from 160, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 14:
42 can be fit into 340 8 times, resulting in a remainder of 4.
Write down 8 as next digit of the result. 
Result so far: 20332.38095238
The remainder is 4 after subtracting 336 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The final result is 20332.38095238 with a remainder of 4e-09.