746590 divided by 40 
The aim is to understand the frequency of 40 in 746590.

Step 1:
When dividing 7 by 40, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Append the next digit (4) from the dividend to 7 and continue with: 74 / 40

On to step 2:
The number 40 fits into 74 1 times, leaving a remainder of 34.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 40 from 74 and we're left with 34.
Append the next digit (6) from the dividend to 34 and continue with: 346 / 40

Moving on to step 3:
The number 40 fits into 346 8 times, leaving a remainder of 26.
Put 8 as the next digit of the answer. 
Result so far: 18.0
The remainder is 26 after subtracting 320 from 346.
Take the next digit (5) from the dividend and append it to 26, then repeat: 265 / 40

Let's proceed to step 4:
If we divide 265 by 40, we get 6 and a remainder of 25.
The next digit of our result is 6. 
Result so far: 186.0
If we take 240 away from 265, we end up with 25.
Take the next digit (9) from the dividend and append it to 25, then repeat: 259 / 40

Moving on to step 5:
When dividing 259 by 40, we get 6 with a remainder of 19.
Use 6 as the next digit of our solution. 
Result so far: 1866.0
If we subtract 240 from 259, we get 19.
Append the next digit (0) from the dividend to 19 and continue with: 190 / 40

Going ahead to step 6:
190 divided by 40 is 4 with a remainder of 30.
Record the quotient 4 as the next digit in the result. 
Result so far: 18664.0
If we take 160 away from 190, we end up 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.

Moving on to step 7:
40 goes into 300 7 times with a remainder of 20.
Use 7 as the next digit of our solution. 
Result so far: 18664.7
Deduct 280 from 300 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.

Moving on to step 8:
The number 40 fits into 200 5 times, leaving a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 18664.75
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.

On to step 9:
When dividing 0 by 40, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 18664.75
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.

Let's proceed to step 10:
0 divided by 40 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 18664.75
The remainder is 0 after subtracting 0 from 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 18664.75 with a remaining 0.0.