We look at the division of 40125051 by 234 
The aim is to understand the frequency of 234 in 40125051.

Going ahead to step 1:
The number 234 fits into 4 0 times, leaving 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.
Append the next digit (0) from the dividend to 4 and continue with: 40 / 234

On to step 2:
The number 234 fits into 40 0 times, leaving a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 40, we get 40.
Grab the next digit (1) from the dividend, add it to 40, then carry on: 401 / 234

Moving on to step 3:
When dividing 401 by 234, we get 1 with a remainder of 167.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 234 from 401 and we're left with 167.
Take the next digit (2) from the dividend and append it to 167, then repeat: 1672 / 234

Let's proceed to step 4:
If we divide 1672 by 234, we get 7 and a remainder of 34.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
If we take 1638 away from 1672, we end up with 34.
Take the next digit (5) from the dividend and append it to 34, then repeat: 345 / 234

Step 5:
234 goes into 345 1 times with a remainder of 111.
The number 1 becomes the next digit in our result. 
Result so far: 171.0
If we subtract 234 from 345, we get 111.
Grab the next digit (0) from the dividend, add it to 111, then carry on: 1110 / 234

On to step 6:
When dividing 1110 by 234, we get 4 with a remainder of 174.
Put 4 as the next digit of the answer. 
Result so far: 1714.0
Deduct 936 from 1110 and we're left with 174.
Take the next digit (5) from the dividend and append it to 174, then repeat: 1745 / 234

Advancing to step 7:
234 goes into 1745 7 times with a remainder of 107.
Put 7 as the next digit of the answer. 
Result so far: 17147.0
Deduct 1638 from 1745 and we're left with 107.
Append the next digit (1) from the dividend to 107 and continue with: 1071 / 234

Advancing to step 8:
When dividing 1071 by 234, we get 4 with a remainder of 135.
Record the quotient 4 as the next digit in the result. 
Result so far: 171474.0
If we take 936 away from 1071, we end up with 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

Going ahead to step 9:
234 goes into 1350 5 times with a remainder of 180.
Write down 5 as next digit of the result. 
Result so far: 171474.5
Subtracting 1170 from 1350 leaves us with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Let's proceed to step 10:
If we divide 1800 by 234, we get 7 and a remainder of 162.
Write down 7 as next digit of the result. 
Result so far: 171474.57
If we subtract 1638 from 1800, we get 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

On to step 11:
1620 divided by 234 is 6 with a remainder of 216.
Put 6 as the next digit of the answer. 
Result so far: 171474.576
If we take 1404 away from 1620, we end up with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Step 12:
If we divide 2160 by 234, we get 9 and a remainder of 54.
Record the quotient 9 as the next digit in the result. 
Result so far: 171474.5769
Subtract 2106 from 2160 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 13:
If we divide 540 by 234, we get 2 and a remainder of 72.
The next digit of our result is 2. 
Result so far: 171474.57692
If we take 468 away from 540, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 14:
The number 234 fits into 720 3 times, leaving a remainder of 18.
Write down 3 as next digit of the result. 
Result so far: 171474.576923
Subtracting 702 from 720 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 15:
If we divide 180 by 234, we get 0 and a remainder of 180.
Record the quotient 0 as the next digit in the result. 
Result so far: 171474.576923
Subtracting 0 from 180 leaves us with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

On to step 16:
234 goes into 1800 7 times with a remainder of 162.
Write down 7 as next digit of the result. 
Result so far: 171474.57692307
Subtract 1638 from 1800 to get 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

The final outcome is 171474.57692307, with a leftover of 1.62e-07.