We look at the division of 37308881 by 903 
The aim is to understand the frequency of 903 in 37308881.

Moving on to step 1:
If we divide 3 by 903, we get 0 and a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 903

Advancing to step 2:
If we divide 37 by 903, we get 0 and a remainder of 37.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 37 and we're left with 37.
Fetch the next digit (3) from the dividend, attach it to 37 and continue: 373 / 903

Advancing to step 3:
When dividing 373 by 903, we get 0 with a remainder of 373.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 373, we end up with 373.
Grab the next digit (0) from the dividend, add it to 373, then carry on: 3730 / 903

Let's proceed to step 4:
The number 903 fits into 3730 4 times, leaving a remainder of 118.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Deduct 3612 from 3730 and we're left with 118.
Include the next digit (8) from the dividend after 118, then repeat: 1188 / 903

On to step 5:
When dividing 1188 by 903, we get 1 with a remainder of 285.
The next digit of our result is 1. 
Result so far: 41.0
The remainder is 285 after subtracting 903 from 1188.
Grab the next digit (8) from the dividend, add it to 285, then carry on: 2858 / 903

On to step 6:
The number 903 fits into 2858 3 times, leaving a remainder of 149.
Use 3 as the next digit of our solution. 
Result so far: 413.0
Subtract 2709 from 2858 to get 149.
Take the next digit (8) from the dividend and append it to 149, then repeat: 1498 / 903

Step 7:
1498 divided by 903 is 1 with a remainder of 595.
The number 1 becomes the next digit in our result. 
Result so far: 4131.0
If we take 903 away from 1498, we end up with 595.
Bring next digit (1) of the dividend behind the 595 and repeat the process: 5951 / 903

Moving on to step 8:
5951 divided by 903 is 6 with a remainder of 533.
Record the quotient 6 as the next digit in the result. 
Result so far: 41316.0
If we take 5418 away from 5951, we end up with 533.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5330, and continue the process.

Step 9:
903 can be fit into 5330 5 times, resulting in a remainder of 815.
Record the quotient 5 as the next digit in the result. 
Result so far: 41316.5
If we subtract 4515 from 5330, we get 815.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8150, and continue the process.

Going ahead to step 10:
903 can be fit into 8150 9 times, resulting in a remainder of 23.
Write down 9 as next digit of the result. 
Result so far: 41316.59
Subtract 8127 from 8150 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 11:
903 goes into 230 0 times with a remainder of 230.
Record the quotient 0 as the next digit in the result. 
Result so far: 41316.59
If we subtract 0 from 230, we get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Moving on to step 12:
903 can be fit into 2300 2 times, resulting in a remainder of 494.
Write down 2 as next digit of the result. 
Result so far: 41316.5902
The remainder is 494 after subtracting 1806 from 2300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4940, and continue the process.

Going ahead to step 13:
When dividing 4940 by 903, we get 5 with a remainder of 425.
The next digit of our result is 5. 
Result so far: 41316.59025
If we subtract 4515 from 4940, we get 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Going ahead to step 14:
The number 903 fits into 4250 4 times, leaving a remainder of 638.
Write down 4 as next digit of the result. 
Result so far: 41316.590254
Deduct 3612 from 4250 and we're left with 638.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6380, and continue the process.

Step 15:
903 goes into 6380 7 times with a remainder of 59.
The next digit of our result is 7. 
Result so far: 41316.5902547
Deduct 6321 from 6380 and we're left 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.

Advancing to step 16:
590 divided by 903 is 0 with a remainder of 590.
The next digit of our result is 0. 
Result so far: 41316.5902547
If we subtract 0 from 590, we get 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5900, and continue the process.

The final outcome is 41316.5902547, with a leftover of 5.9e-07.