Let's divide 71383787 by 389
The aim is to understand the frequency of 389 in 71383787.

Going ahead to step 1:
If we divide 7 by 389, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (1) from the dividend, add it to 7, then carry on: 71 / 389

Step 2:
The number 389 fits into 71 0 times, leaving a remainder of 71.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 71 and we're left with 71.
Take the next digit (3) from the dividend and append it to 71, then repeat: 713 / 389

Going ahead to step 3:
389 can be fit into 713 1 times, resulting in a remainder of 324.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 389 from 713 and we're left with 324.
Bring next digit (8) of the dividend behind the 324 and repeat the process: 3248 / 389

Moving on to step 4:
If we divide 3248 by 389, we get 8 and a remainder of 136.
Write down 8 as next digit of the result. 
Result so far: 18.0
If we subtract 3112 from 3248, we get 136.
Bring next digit (3) of the dividend behind the 136 and repeat the process: 1363 / 389

On to step 5:
The number 389 fits into 1363 3 times, leaving a remainder of 196.
Record the quotient 3 as the next digit in the result. 
Result so far: 183.0
The remainder is 196 after subtracting 1167 from 1363.
Append the next digit (7) from the dividend to 196 and continue with: 1967 / 389

Step 6:
389 goes into 1967 5 times with a remainder of 22.
Write down 5 as next digit of the result. 
Result so far: 1835.0
Deduct 1945 from 1967 and we're left with 22.
Grab the next digit (8) from the dividend, add it to 22, then carry on: 228 / 389

Moving on to step 7:
The number 389 fits into 228 0 times, leaving a remainder of 228.
Put 0 as the next digit of the answer. 
Result so far: 18350.0
If we take 0 away from 228, we end up with 228.
Fetch the next digit (7) from the dividend, attach it to 228 and continue: 2287 / 389

Let's proceed to step 8:
When dividing 2287 by 389, we get 5 with a remainder of 342.
Record the quotient 5 as the next digit in the result. 
Result so far: 183505.0
If we subtract 1945 from 2287, we get 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

Let's proceed to step 9:
389 goes into 3420 8 times with a remainder of 308.
The next digit of our result is 8. 
Result so far: 183505.8
Subtracting 3112 from 3420 leaves us with 308.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3080, and continue the process.

Step 10:
When dividing 3080 by 389, we get 7 with a remainder of 357.
The next digit of our result is 7. 
Result so far: 183505.87
If we take 2723 away from 3080, we end up with 357.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3570, and continue the process.

Step 11:
389 goes into 3570 9 times with a remainder of 69.
Write down 9 as next digit of the result. 
Result so far: 183505.879
If we take 3501 away from 3570, we end up with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Advancing to step 12:
The number 389 fits into 690 1 times, leaving a remainder of 301.
Use 1 as the next digit of our solution. 
Result so far: 183505.8791
Subtracting 389 from 690 leaves us with 301.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3010, and continue the process.

Let's proceed to step 13:
389 can be fit into 3010 7 times, resulting in a remainder of 287.
Write down 7 as next digit of the result. 
Result so far: 183505.87917
Deduct 2723 from 3010 and we're left with 287.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2870, and continue the process.

Step 14:
2870 divided by 389 is 7 with a remainder of 147.
Write down 7 as next digit of the result. 
Result so far: 183505.879177
Subtracting 2723 from 2870 leaves us with 147.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1470, and continue the process.

The final outcome is 183505.879177, with a leftover of 1.47e-05.