803616 ÷ 42 
The aim is to understand the frequency of 42 in 803616.

Going ahead to step 1:
8 divided by 42 is 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 42

Let's proceed to step 2:
42 can be fit into 80 1 times, resulting in a remainder of 38.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 42 from 80 to get 38.
Grab the next digit (3) from the dividend, add it to 38, then carry on: 383 / 42

Moving on to step 3:
42 goes into 383 9 times with a remainder of 5.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
Subtracting 378 from 383 leaves us with 5.
Fetch the next digit (6) from the dividend, attach it to 5 and continue: 56 / 42

On to step 4:
If we divide 56 by 42, we get 1 and a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 191.0
If we subtract 42 from 56, we get 14.
Fetch the next digit (1) from the dividend, attach it to 14 and continue: 141 / 42

On to step 5:
42 can be fit into 141 3 times, resulting in a remainder of 15.
Put 3 as the next digit of the answer. 
Result so far: 1913.0
Subtract 126 from 141 to get 15.
Bring next digit (6) of the dividend behind the 15 and repeat the process: 156 / 42

On to step 6:
If we divide 156 by 42, we get 3 and a remainder of 30.
Use 3 as the next digit of our solution. 
Result so far: 19133.0
If we subtract 126 from 156, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 7:
300 divided by 42 is 7 with a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 19133.7
If we take 294 away from 300, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 8:
When dividing 60 by 42, we get 1 with a remainder of 18.
The next digit of our result is 1. 
Result so far: 19133.71
If we take 42 away from 60, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 9:
If we divide 180 by 42, we get 4 and a remainder of 12.
Put 4 as the next digit of the answer. 
Result so far: 19133.714
If we subtract 168 from 180, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 10:
42 can be fit into 120 2 times, resulting in a remainder of 36.
Use 2 as the next digit of our solution. 
Result so far: 19133.7142
If we take 84 away from 120, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Moving on to step 11:
42 goes into 360 8 times with a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 19133.71428
Subtracting 336 from 360 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 12:
When dividing 240 by 42, we get 5 with a remainder of 30.
The number 5 becomes the next digit in our result. 
Result so far: 19133.714285
If we subtract 210 from 240, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 13:
The number 42 fits into 300 7 times, leaving a remainder of 6.
The number 7 becomes the next digit in our result. 
Result so far: 19133.7142857
If we take 294 away from 300, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 14:
42 can be fit into 60 1 times, resulting in a remainder of 18.
The next digit of our result is 1. 
Result so far: 19133.71428571
If we subtract 42 from 60, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

The final result is 19133.71428571 with a remainder of 1.8e-08.