We divide 425564 by 40
The aim is to understand the frequency of 40 in 425564.

Step 1:
If we divide 4 by 40, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Bring next digit (2) of the dividend behind the 4 and repeat the process: 42 / 40

On to step 2:
If we divide 42 by 40, we get 1 and a remainder of 2.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 40 from 42, we get 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 40

Advancing to step 3:
If we divide 25 by 40, we get 0 and a remainder of 25.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Deduct 0 from 25 and we're left with 25.
Take the next digit (5) from the dividend and append it to 25, then repeat: 255 / 40

Moving on to step 4:
The number 40 fits into 255 6 times, leaving a remainder of 15.
Write down 6 as next digit of the result. 
Result so far: 106.0
Subtracting 240 from 255 leaves us with 15.
Fetch the next digit (6) from the dividend, attach it to 15 and continue: 156 / 40

Let's proceed to step 5:
When dividing 156 by 40, we get 3 with a remainder of 36.
Put 3 as the next digit of the answer. 
Result so far: 1063.0
Subtracting 120 from 156 leaves us with 36.
Grab the next digit (4) from the dividend, add it to 36, then carry on: 364 / 40

Going ahead to step 6:
364 divided by 40 is 9 with a remainder of 4.
The next digit of our result is 9. 
Result so far: 10639.0
Subtract 360 from 364 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 7:
40 divided by 40 is 1 with a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 10639.1
Deduct 40 from 40 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 8:
The number 40 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 10639.1
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.

Let's proceed to step 9:
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: 10639.1
If we take 0 away from 0, we end up 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.

After the division, we end up with 10639.1 and a remainder of 0.0.