417945 ÷ 42 
The aim is to understand the frequency of 42 in 417945.

On to step 1:
42 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (1) from the dividend, add it to 4, then carry on: 41 / 42

Let's proceed to step 2:
If we divide 41 by 42, we get 0 and a remainder of 41.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 41, we get 41.
Grab the next digit (7) from the dividend, add it to 41, then carry on: 417 / 42

Advancing to step 3:
42 goes into 417 9 times with a remainder of 39.
Write down 9 as next digit of the result. 
Result so far: 9.0
Deduct 378 from 417 and we're left with 39.
Append the next digit (9) from the dividend to 39 and continue with: 399 / 42

Let's proceed to step 4:
The number 42 fits into 399 9 times, leaving a remainder of 21.
Put 9 as the next digit of the answer. 
Result so far: 99.0
Subtract 378 from 399 to get 21.
Fetch the next digit (4) from the dividend, attach it to 21 and continue: 214 / 42

Let's proceed to step 5:
If we divide 214 by 42, we get 5 and a remainder of 4.
Write down 5 as next digit of the result. 
Result so far: 995.0
Deduct 210 from 214 and we're left with 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 42

Let's proceed to step 6:
42 goes into 45 1 times with a remainder of 3.
The number 1 becomes the next digit in our result. 
Result so far: 9951.0
Deduct 42 from 45 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Moving on to step 7:
The number 42 fits into 30 0 times, leaving a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 9951.0
Subtract 0 from 30 to 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 8:
If we divide 300 by 42, we get 7 and a remainder of 6.
Use 7 as the next digit of our solution. 
Result so far: 9951.07
Deduct 294 from 300 and we're left 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.

Moving on to step 9:
When dividing 60 by 42, we get 1 with a remainder of 18.
Write down 1 as next digit of the result. 
Result so far: 9951.071
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.

Let's proceed to step 10:
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: 9951.0714
Subtracting 168 from 180 leaves us 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.

Let's proceed to step 11:
42 can be fit into 120 2 times, resulting in a remainder of 36.
Put 2 as the next digit of the answer. 
Result so far: 9951.07142
Deduct 84 from 120 and we're left 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 12:
42 can be fit into 360 8 times, resulting in a remainder of 24.
Use 8 as the next digit of our solution. 
Result so far: 9951.071428
The remainder is 24 after subtracting 336 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 13:
When dividing 240 by 42, we get 5 with a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 9951.0714285
Deduct 210 from 240 and we're left with 30.
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 14:
42 can be fit into 300 7 times, resulting in a remainder of 6.
The number 7 becomes the next digit in our result. 
Result so far: 9951.07142857
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.

In conclusion, the division gives 9951.07142857 with a balance of 6e-09.