We're dividing 40423575 by 946 
The aim is to understand the frequency of 946 in 40423575.

On to step 1:
4 divided by 946 is 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 946

Moving on to step 2:
When dividing 40 by 946, we get 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 40, we get 40.
Fetch the next digit (4) from the dividend, attach it to 40 and continue: 404 / 946

Advancing to step 3:
When dividing 404 by 946, we get 0 with a remainder of 404.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 404, we end up with 404.
Take the next digit (2) from the dividend and append it to 404, then repeat: 4042 / 946

Let's proceed to step 4:
The number 946 fits into 4042 4 times, leaving a remainder of 258.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we subtract 3784 from 4042, we get 258.
Append the next digit (3) from the dividend to 258 and continue with: 2583 / 946

On to step 5:
If we divide 2583 by 946, we get 2 and a remainder of 691.
Write down 2 as next digit of the result. 
Result so far: 42.0
Deduct 1892 from 2583 and we're left with 691.
Take the next digit (5) from the dividend and append it to 691, then repeat: 6915 / 946

Going ahead to step 6:
946 goes into 6915 7 times with a remainder of 293.
Write down 7 as next digit of the result. 
Result so far: 427.0
The remainder is 293 after subtracting 6622 from 6915.
Bring next digit (7) of the dividend behind the 293 and repeat the process: 2937 / 946

Step 7:
946 can be fit into 2937 3 times, resulting in a remainder of 99.
Write down 3 as next digit of the result. 
Result so far: 4273.0
If we subtract 2838 from 2937, we get 99.
Fetch the next digit (5) from the dividend, attach it to 99 and continue: 995 / 946

Step 8:
When dividing 995 by 946, we get 1 with a remainder of 49.
The number 1 becomes the next digit in our result. 
Result so far: 42731.0
Deduct 946 from 995 and we're left with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 9:
946 goes into 490 0 times with a remainder of 490.
The number 0 becomes the next digit in our result. 
Result so far: 42731.0
Subtracting 0 from 490 leaves us with 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Let's proceed to step 10:
946 goes into 4900 5 times with a remainder of 170.
The next digit of our result is 5. 
Result so far: 42731.05
Subtracting 4730 from 4900 leaves us with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Let's proceed to step 11:
946 can be fit into 1700 1 times, resulting in a remainder of 754.
Write down 1 as next digit of the result. 
Result so far: 42731.051
Subtracting 946 from 1700 leaves us with 754.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7540, and continue the process.

On to step 12:
946 goes into 7540 7 times with a remainder of 918.
Write down 7 as next digit of the result. 
Result so far: 42731.0517
If we take 6622 away from 7540, we end up with 918.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9180, and continue the process.

Going ahead to step 13:
9180 divided by 946 is 9 with a remainder of 666.
Record the quotient 9 as the next digit in the result. 
Result so far: 42731.05179
If we subtract 8514 from 9180, we get 666.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6660, and continue the process.

Going ahead to step 14:
946 goes into 6660 7 times with a remainder of 38.
Record the quotient 7 as the next digit in the result. 
Result so far: 42731.051797
Subtract 6622 from 6660 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 15:
946 goes into 380 0 times with a remainder of 380.
Put 0 as the next digit of the answer. 
Result so far: 42731.051797
If we subtract 0 from 380, we get 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Going ahead to step 16:
946 can be fit into 3800 4 times, resulting in a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 42731.05179704
Deduct 3784 from 3800 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final result is 42731.05179704 with a remainder of 1.6e-08.