818619 divided by 42 
The aim is to understand the frequency of 42 in 818619.

Advancing to step 1:
If we divide 8 by 42, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 42

Moving on to step 2:
The number 42 fits into 81 1 times, leaving a remainder of 39.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 42 from 81 leaves us with 39.
Fetch the next digit (8) from the dividend, attach it to 39 and continue: 398 / 42

Moving on to step 3:
398 divided by 42 is 9 with a remainder of 20.
Put 9 as the next digit of the answer. 
Result so far: 19.0
Deduct 378 from 398 and we're left with 20.
Grab the next digit (6) from the dividend, add it to 20, then carry on: 206 / 42

Let's proceed to step 4:
The number 42 fits into 206 4 times, leaving a remainder of 38.
Record the quotient 4 as the next digit in the result. 
Result so far: 194.0
If we take 168 away from 206, we end up with 38.
Fetch the next digit (1) from the dividend, attach it to 38 and continue: 381 / 42

Advancing to step 5:
42 goes into 381 9 times with a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 1949.0
Subtracting 378 from 381 leaves us with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 42

On to step 6:
If we divide 39 by 42, we get 0 and a remainder of 39.
The number 0 becomes the next digit in our result. 
Result so far: 19490.0
The remainder is 39 after subtracting 0 from 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 7:
42 can be fit into 390 9 times, resulting in a remainder of 12.
Record the quotient 9 as the next digit in the result. 
Result so far: 19490.9
If we take 378 away from 390, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 8:
42 goes into 120 2 times with a remainder of 36.
Record the quotient 2 as the next digit in the result. 
Result so far: 19490.92
If we subtract 84 from 120, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 9:
42 goes into 360 8 times with a remainder of 24.
Use 8 as the next digit of our solution. 
Result so far: 19490.928
If we take 336 away from 360, we end up 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.

Advancing to step 10:
The number 42 fits into 240 5 times, leaving a remainder of 30.
The number 5 becomes the next digit in our result. 
Result so far: 19490.9285
The remainder is 30 after subtracting 210 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 11:
300 divided by 42 is 7 with a remainder of 6.
Write down 7 as next digit of the result. 
Result so far: 19490.92857
Subtracting 294 from 300 leaves us 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 12:
42 can be fit into 60 1 times, resulting in a remainder of 18.
Write down 1 as next digit of the result. 
Result so far: 19490.928571
Deduct 42 from 60 and we're left 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.

Going ahead to step 13:
The number 42 fits into 180 4 times, leaving a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 19490.9285714
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.

Advancing to step 14:
42 goes into 120 2 times with a remainder of 36.
Use 2 as the next digit of our solution. 
Result so far: 19490.92857142
Subtract 84 from 120 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

The quotient of the division is 19490.92857142, and the remainder is 3.6e-08.