451570 divided by 40 
The aim is to understand the frequency of 40 in 451570.

Advancing to step 1:
If we divide 4 by 40, we get 0 and a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 40

Step 2:
If we divide 45 by 40, we get 1 and a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 40 from 45, we get 5.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 40

Going ahead to step 3:
40 goes into 51 1 times with a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Subtract 40 from 51 to get 11.
Bring next digit (5) of the dividend behind the 11 and repeat the process: 115 / 40

Advancing to step 4:
The number 40 fits into 115 2 times, leaving a remainder of 35.
The next digit of our result is 2. 
Result so far: 112.0
The remainder is 35 after subtracting 80 from 115.
Grab the next digit (7) from the dividend, add it to 35, then carry on: 357 / 40

Advancing to step 5:
357 divided by 40 is 8 with a remainder of 37.
Write down 8 as next digit of the result. 
Result so far: 1128.0
Subtracting 320 from 357 leaves us with 37.
Append the next digit (0) from the dividend to 37 and continue with: 370 / 40

Going ahead to step 6:
If we divide 370 by 40, we get 9 and a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 11289.0
Subtract 360 from 370 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 7:
40 goes into 100 2 times with a remainder of 20.
Put 2 as the next digit of the answer. 
Result so far: 11289.2
Deduct 80 from 100 and we're left 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.

Step 8:
40 can be fit into 200 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 11289.25
If we subtract 200 from 200, we 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.

Let's proceed to step 9:
The number 40 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 11289.25
If we subtract 0 from 0, we 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.

Step 10:
When dividing 0 by 40, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 11289.25
If we subtract 0 from 0, we 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.

Our division results in 11289.25 with a remaining 0.0.