We look at the division of 287425 by 40 
The aim is to understand the frequency of 40 in 287425.

Moving on to step 1:
The number 40 fits into 2 0 times, leaving a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 40

On to step 2:
40 can be fit into 28 0 times, resulting in a remainder of 28.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 28 to get 28.
Fetch the next digit (7) from the dividend, attach it to 28 and continue: 287 / 40

Advancing to step 3:
If we divide 287 by 40, we get 7 and a remainder of 7.
Put 7 as the next digit of the answer. 
Result so far: 7.0
Subtract 280 from 287 to get 7.
Take the next digit (4) from the dividend and append it to 7, then repeat: 74 / 40

Let's proceed to step 4:
74 divided by 40 is 1 with a remainder of 34.
The next digit of our result is 1. 
Result so far: 71.0
Subtracting 40 from 74 leaves us with 34.
Grab the next digit (2) from the dividend, add it to 34, then carry on: 342 / 40

Let's proceed to step 5:
342 divided by 40 is 8 with a remainder of 22.
Use 8 as the next digit of our solution. 
Result so far: 718.0
Deduct 320 from 342 and we're left with 22.
Take the next digit (5) from the dividend and append it to 22, then repeat: 225 / 40

Advancing to step 6:
40 can be fit into 225 5 times, resulting in a remainder of 25.
The next digit of our result is 5. 
Result so far: 7185.0
Deduct 200 from 225 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 7:
The number 40 fits into 250 6 times, leaving a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 7185.6
The remainder is 10 after subtracting 240 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 8:
100 divided by 40 is 2 with a remainder of 20.
Put 2 as the next digit of the answer. 
Result so far: 7185.62
If we subtract 80 from 100, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 9:
If we divide 200 by 40, we get 5 and a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 7185.625
Deduct 200 from 200 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.

Going ahead to step 10:
The number 40 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 7185.625
Subtracting 0 from 0 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 11:
If we divide 0 by 40, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 7185.625
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.

The final outcome is 7185.625, with a leftover of 0.0.