We look at the division of 68490621 by 903 
The aim is to understand the frequency of 903 in 68490621.

Moving on to step 1:
903 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Grab the next digit (8) from the dividend, add it to 6, then carry on: 68 / 903

Moving on to step 2:
903 can be fit into 68 0 times, resulting in a remainder of 68.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 68 after subtracting 0 from 68.
Fetch the next digit (4) from the dividend, attach it to 68 and continue: 684 / 903

Advancing to step 3:
903 can be fit into 684 0 times, resulting in a remainder of 684.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 684 after subtracting 0 from 684.
Bring next digit (9) of the dividend behind the 684 and repeat the process: 6849 / 903

Moving on to step 4:
When dividing 6849 by 903, we get 7 with a remainder of 528.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Subtract 6321 from 6849 to get 528.
Include the next digit (0) from the dividend after 528, then repeat: 5280 / 903

Going ahead to step 5:
5280 divided by 903 is 5 with a remainder of 765.
Write down 5 as next digit of the result. 
Result so far: 75.0
The remainder is 765 after subtracting 4515 from 5280.
Include the next digit (6) from the dividend after 765, then repeat: 7656 / 903

Moving on to step 6:
If we divide 7656 by 903, we get 8 and a remainder of 432.
Use 8 as the next digit of our solution. 
Result so far: 758.0
If we take 7224 away from 7656, we end up with 432.
Append the next digit (2) from the dividend to 432 and continue with: 4322 / 903

On to step 7:
4322 divided by 903 is 4 with a remainder of 710.
Put 4 as the next digit of the answer. 
Result so far: 7584.0
If we subtract 3612 from 4322, we get 710.
Include the next digit (1) from the dividend after 710, then repeat: 7101 / 903

Advancing to step 8:
If we divide 7101 by 903, we get 7 and a remainder of 780.
Record the quotient 7 as the next digit in the result. 
Result so far: 75847.0
Deduct 6321 from 7101 and we're left with 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7800, and continue the process.

Advancing to step 9:
903 can be fit into 7800 8 times, resulting in a remainder of 576.
Write down 8 as next digit of the result. 
Result so far: 75847.8
If we take 7224 away from 7800, we end up with 576.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5760, and continue the process.

Going ahead to step 10:
The number 903 fits into 5760 6 times, leaving a remainder of 342.
Write down 6 as next digit of the result. 
Result so far: 75847.86
Deduct 5418 from 5760 and we're left with 342.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3420, and continue the process.

Advancing to step 11:
903 goes into 3420 3 times with a remainder of 711.
Put 3 as the next digit of the answer. 
Result so far: 75847.863
If we subtract 2709 from 3420, we get 711.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7110, and continue the process.

Going ahead to step 12:
If we divide 7110 by 903, we get 7 and a remainder of 789.
The next digit of our result is 7. 
Result so far: 75847.8637
If we take 6321 away from 7110, we end up with 789.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7890, and continue the process.

Step 13:
903 goes into 7890 8 times with a remainder of 666.
Write down 8 as next digit of the result. 
Result so far: 75847.86378
Deduct 7224 from 7890 and we're left with 666.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6660, and continue the process.

Going ahead to step 14:
When dividing 6660 by 903, we get 7 with a remainder of 339.
The next digit of our result is 7. 
Result so far: 75847.863787
The remainder is 339 after subtracting 6321 from 6660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3390, and continue the process.

Step 15:
903 goes into 3390 3 times with a remainder of 681.
Write down 3 as next digit of the result. 
Result so far: 75847.8637873
If we subtract 2709 from 3390, we get 681.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6810, and continue the process.

Going ahead to step 16:
903 goes into 6810 7 times with a remainder of 489.
Use 7 as the next digit of our solution. 
Result so far: 75847.86378737
If we subtract 6321 from 6810, we get 489.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4890, and continue the process.

In conclusion, the division gives 75847.86378737 with a balance of 4.89e-07.