51464125 ÷ 38 
The aim is to understand the frequency of 38 in 51464125.

Moving on to step 1:
The number 38 fits into 5 0 times, leaving a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 38

On to step 2:
38 goes into 51 1 times with a remainder of 13.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 38 from 51 and we're left with 13.
Grab the next digit (4) from the dividend, add it to 13, then carry on: 134 / 38

Moving on to step 3:
If we divide 134 by 38, we get 3 and a remainder of 20.
The next digit of our result is 3. 
Result so far: 13.0
The remainder is 20 after subtracting 114 from 134.
Append the next digit (6) from the dividend to 20 and continue with: 206 / 38

Let's proceed to step 4:
When dividing 206 by 38, we get 5 with a remainder of 16.
Record the quotient 5 as the next digit in the result. 
Result so far: 135.0
The remainder is 16 after subtracting 190 from 206.
Bring next digit (4) of the dividend behind the 16 and repeat the process: 164 / 38

Going ahead to step 5:
38 can be fit into 164 4 times, resulting in a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 1354.0
If we subtract 152 from 164, we get 12.
Append the next digit (1) from the dividend to 12 and continue with: 121 / 38

Going ahead to step 6:
The number 38 fits into 121 3 times, leaving a remainder of 7.
The next digit of our result is 3. 
Result so far: 13543.0
If we take 114 away from 121, we end up with 7.
Include the next digit (2) from the dividend after 7, then repeat: 72 / 38

On to step 7:
If we divide 72 by 38, we get 1 and a remainder of 34.
Record the quotient 1 as the next digit in the result. 
Result so far: 135431.0
If we subtract 38 from 72, we get 34.
Bring next digit (5) of the dividend behind the 34 and repeat the process: 345 / 38

Going ahead to step 8:
38 can be fit into 345 9 times, resulting in a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 1354319.0
The remainder is 3 after subtracting 342 from 345.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Advancing to step 9:
38 goes into 30 0 times with a remainder of 30.
The number 0 becomes the next digit in our result. 
Result so far: 1354319.0
Subtracting 0 from 30 leaves us 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.

Advancing to step 10:
When dividing 300 by 38, we get 7 with a remainder of 34.
Record the quotient 7 as the next digit in the result. 
Result so far: 1354319.07
Deduct 266 from 300 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 11:
When dividing 340 by 38, we get 8 with a remainder of 36.
Put 8 as the next digit of the answer. 
Result so far: 1354319.078
Subtracting 304 from 340 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 12:
If we divide 360 by 38, we get 9 and a remainder of 18.
The next digit of our result is 9. 
Result so far: 1354319.0789
If we take 342 away from 360, we end up 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.

Going ahead to step 13:
180 divided by 38 is 4 with a remainder of 28.
Record the quotient 4 as the next digit in the result. 
Result so far: 1354319.07894
Subtract 152 from 180 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 14:
If we divide 280 by 38, we get 7 and a remainder of 14.
Record the quotient 7 as the next digit in the result. 
Result so far: 1354319.078947
Deduct 266 from 280 and we're left with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Step 15:
If we divide 140 by 38, we get 3 and a remainder of 26.
Use 3 as the next digit of our solution. 
Result so far: 1354319.0789473
Subtracting 114 from 140 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Step 16:
The number 38 fits into 260 6 times, leaving a remainder of 32.
The next digit of our result is 6. 
Result so far: 1354319.07894736
Deduct 228 from 260 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final result is 1354319.07894736 with a remainder of 3.2e-08.