Let's divide 51008339 by 381
The aim is to understand the frequency of 381 in 51008339.

Advancing to step 1:
381 goes into 5 0 times with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 381

Advancing to step 2:
If we divide 51 by 381, we get 0 and a remainder of 51.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Take the next digit (0) from the dividend and append it to 51, then repeat: 510 / 381

Moving on to step 3:
381 can be fit into 510 1 times, resulting in a remainder of 129.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 381 from 510 leaves us with 129.
Append the next digit (0) from the dividend to 129 and continue with: 1290 / 381

Step 4:
The number 381 fits into 1290 3 times, leaving a remainder of 147.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
If we take 1143 away from 1290, we end up with 147.
Append the next digit (8) from the dividend to 147 and continue with: 1478 / 381

Going ahead to step 5:
1478 divided by 381 is 3 with a remainder of 335.
Write down 3 as next digit of the result. 
Result so far: 133.0
If we take 1143 away from 1478, we end up with 335.
Bring next digit (3) of the dividend behind the 335 and repeat the process: 3353 / 381

Step 6:
When dividing 3353 by 381, we get 8 with a remainder of 305.
The next digit of our result is 8. 
Result so far: 1338.0
If we subtract 3048 from 3353, we get 305.
Bring next digit (3) of the dividend behind the 305 and repeat the process: 3053 / 381

Step 7:
If we divide 3053 by 381, we get 8 and a remainder of 5.
Record the quotient 8 as the next digit in the result. 
Result so far: 13388.0
If we take 3048 away from 3053, we end up with 5.
Fetch the next digit (9) from the dividend, attach it to 5 and continue: 59 / 381

Advancing to step 8:
381 goes into 59 0 times with a remainder of 59.
Record the quotient 0 as the next digit in the result. 
Result so far: 133880.0
If we take 0 away from 59, we end up with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

On to step 9:
When dividing 590 by 381, we get 1 with a remainder of 209.
Put 1 as the next digit of the answer. 
Result so far: 133880.1
If we take 381 away from 590, we end up with 209.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

Going ahead to step 10:
2090 divided by 381 is 5 with a remainder of 185.
Record the quotient 5 as the next digit in the result. 
Result so far: 133880.15
Subtract 1905 from 2090 to get 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Moving on to step 11:
When dividing 1850 by 381, we get 4 with a remainder of 326.
Write down 4 as next digit of the result. 
Result so far: 133880.154
Subtracting 1524 from 1850 leaves us with 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

On to step 12:
The number 381 fits into 3260 8 times, leaving a remainder of 212.
Use 8 as the next digit of our solution. 
Result so far: 133880.1548
Subtracting 3048 from 3260 leaves us with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Advancing to step 13:
381 goes into 2120 5 times with a remainder of 215.
Put 5 as the next digit of the answer. 
Result so far: 133880.15485
Subtract 1905 from 2120 to get 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Going ahead to step 14:
If we divide 2150 by 381, we get 5 and a remainder of 245.
Put 5 as the next digit of the answer. 
Result so far: 133880.154855
Deduct 1905 from 2150 and we're left with 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Our division results in 133880.154855 with a remaining 2.45e-05.