We look at the division of 571446 by 40 
The aim is to understand the frequency of 40 in 571446.

Advancing to step 1:
40 can be fit into 5 0 times, resulting in a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 40

Step 2:
57 divided by 40 is 1 with a remainder of 17.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 40 from 57, we get 17.
Include the next digit (1) from the dividend after 17, then repeat: 171 / 40

Step 3:
If we divide 171 by 40, we get 4 and a remainder of 11.
The next digit of our result is 4. 
Result so far: 14.0
Deduct 160 from 171 and we're left with 11.
Append the next digit (4) from the dividend to 11 and continue with: 114 / 40

Let's proceed to step 4:
114 divided by 40 is 2 with a remainder of 34.
Put 2 as the next digit of the answer. 
Result so far: 142.0
The remainder is 34 after subtracting 80 from 114.
Fetch the next digit (4) from the dividend, attach it to 34 and continue: 344 / 40

Step 5:
The number 40 fits into 344 8 times, leaving a remainder of 24.
The next digit of our result is 8. 
Result so far: 1428.0
If we take 320 away from 344, we end up with 24.
Take the next digit (6) from the dividend and append it to 24, then repeat: 246 / 40

Moving on to step 6:
40 goes into 246 6 times with a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 14286.0
Subtract 240 from 246 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
When dividing 60 by 40, we get 1 with a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 14286.1
Subtracting 40 from 60 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 8:
The number 40 fits into 200 5 times, leaving a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 14286.15
Subtracting 200 from 200 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
If we divide 0 by 40, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 14286.15
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 10:
40 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 14286.15
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 14286.15, and the remainder is 0.0.