We look at the division of 419690 by 40 
The aim is to understand the frequency of 40 in 419690.

Moving on to step 1:
The number 40 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Append the next digit (1) from the dividend to 4 and continue with: 41 / 40

On to step 2:
40 goes into 41 1 times with a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 40 from 41 and we're left with 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 40

On to step 3:
If we divide 19 by 40, we get 0 and a remainder of 19.
Use 0 as the next digit of our solution. 
Result so far: 10.0
If we take 0 away from 19, we end up with 19.
Bring next digit (6) of the dividend behind the 19 and repeat the process: 196 / 40

Moving on to step 4:
196 divided by 40 is 4 with a remainder of 36.
Put 4 as the next digit of the answer. 
Result so far: 104.0
Subtract 160 from 196 to get 36.
Fetch the next digit (9) from the dividend, attach it to 36 and continue: 369 / 40

Let's proceed to step 5:
If we divide 369 by 40, we get 9 and a remainder of 9.
The number 9 becomes the next digit in our result. 
Result so far: 1049.0
If we subtract 360 from 369, we get 9.
Grab the next digit (0) from the dividend, add it to 9, then carry on: 90 / 40

Moving on to step 6:
When dividing 90 by 40, we get 2 with a remainder of 10.
The next digit of our result is 2. 
Result so far: 10492.0
Deduct 80 from 90 and we're left with 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:
When dividing 100 by 40, we get 2 with a remainder of 20.
Use 2 as the next digit of our solution. 
Result so far: 10492.2
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.

Let's proceed to step 8:
40 can be fit into 200 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 10492.25
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.

Let's proceed to step 9:
0 divided by 40 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 10492.25
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.

Step 10:
If we divide 0 by 40, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 10492.25
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 final result is 10492.25 with a remainder of 0.0.