We look at the division of 91858186 by 904 
The aim is to understand the frequency of 904 in 91858186.

On to step 1:
904 can be fit into 9 0 times, resulting in a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 904

Let's proceed to step 2:
904 can be fit into 91 0 times, resulting in a remainder of 91.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 91, we get 91.
Include the next digit (8) from the dividend after 91, then repeat: 918 / 904

Advancing to step 3:
When dividing 918 by 904, we get 1 with a remainder of 14.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 904 from 918 to get 14.
Fetch the next digit (5) from the dividend, attach it to 14 and continue: 145 / 904

Advancing to step 4:
904 goes into 145 0 times with a remainder of 145.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
The remainder is 145 after subtracting 0 from 145.
Append the next digit (8) from the dividend to 145 and continue with: 1458 / 904

Going ahead to step 5:
1458 divided by 904 is 1 with a remainder of 554.
Use 1 as the next digit of our solution. 
Result so far: 101.0
If we subtract 904 from 1458, we get 554.
Take the next digit (1) from the dividend and append it to 554, then repeat: 5541 / 904

Let's proceed to step 6:
When dividing 5541 by 904, we get 6 with a remainder of 117.
Use 6 as the next digit of our solution. 
Result so far: 1016.0
If we take 5424 away from 5541, we end up with 117.
Include the next digit (8) from the dividend after 117, then repeat: 1178 / 904

Going ahead to step 7:
The number 904 fits into 1178 1 times, leaving a remainder of 274.
Write down 1 as next digit of the result. 
Result so far: 10161.0
The remainder is 274 after subtracting 904 from 1178.
Take the next digit (6) from the dividend and append it to 274, then repeat: 2746 / 904

Moving on to step 8:
The number 904 fits into 2746 3 times, leaving a remainder of 34.
The number 3 becomes the next digit in our result. 
Result so far: 101613.0
Deduct 2712 from 2746 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.

On to step 9:
904 can be fit into 340 0 times, resulting in a remainder of 340.
The number 0 becomes the next digit in our result. 
Result so far: 101613.0
If we subtract 0 from 340, we get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Step 10:
904 can be fit into 3400 3 times, resulting in a remainder of 688.
The number 3 becomes the next digit in our result. 
Result so far: 101613.03
The remainder is 688 after subtracting 2712 from 3400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6880, and continue the process.

Let's proceed to step 11:
6880 divided by 904 is 7 with a remainder of 552.
The next digit of our result is 7. 
Result so far: 101613.037
Deduct 6328 from 6880 and we're left with 552.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

Let's proceed to step 12:
If we divide 5520 by 904, we get 6 and a remainder of 96.
Record the quotient 6 as the next digit in the result. 
Result so far: 101613.0376
The remainder is 96 after subtracting 5424 from 5520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Moving on to step 13:
960 divided by 904 is 1 with a remainder of 56.
Put 1 as the next digit of the answer. 
Result so far: 101613.03761
Subtract 904 from 960 to get 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 14:
560 divided by 904 is 0 with a remainder of 560.
Put 0 as the next digit of the answer. 
Result so far: 101613.03761
Subtract 0 from 560 to get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Advancing to step 15:
904 goes into 5600 6 times with a remainder of 176.
The next digit of our result is 6. 
Result so far: 101613.0376106
The remainder is 176 after subtracting 5424 from 5600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Moving on to step 16:
The number 904 fits into 1760 1 times, leaving a remainder of 856.
The number 1 becomes the next digit in our result. 
Result so far: 101613.03761061
Subtract 904 from 1760 to get 856.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8560, and continue the process.

The quotient of the division is 101613.03761061, and the remainder is 8.56e-07.