9903221 divided by 178 
The aim is to understand the frequency of 178 in 9903221.

Step 1:
The number 178 fits into 9 0 times, leaving a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 178

Going ahead to step 2:
The number 178 fits into 99 0 times, leaving a remainder of 99.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 99 and we're left with 99.
Fetch the next digit (0) from the dividend, attach it to 99 and continue: 990 / 178

Moving on to step 3:
The number 178 fits into 990 5 times, leaving a remainder of 100.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
The remainder is 100 after subtracting 890 from 990.
Take the next digit (3) from the dividend and append it to 100, then repeat: 1003 / 178

Let's proceed to step 4:
1003 divided by 178 is 5 with a remainder of 113.
Record the quotient 5 as the next digit in the result. 
Result so far: 55.0
The remainder is 113 after subtracting 890 from 1003.
Include the next digit (2) from the dividend after 113, then repeat: 1132 / 178

Moving on to step 5:
1132 divided by 178 is 6 with a remainder of 64.
Use 6 as the next digit of our solution. 
Result so far: 556.0
If we take 1068 away from 1132, we end up with 64.
Grab the next digit (2) from the dividend, add it to 64, then carry on: 642 / 178

Advancing to step 6:
178 goes into 642 3 times with a remainder of 108.
Record the quotient 3 as the next digit in the result. 
Result so far: 5563.0
Deduct 534 from 642 and we're left with 108.
Fetch the next digit (1) from the dividend, attach it to 108 and continue: 1081 / 178

Going ahead to step 7:
The number 178 fits into 1081 6 times, leaving a remainder of 13.
Record the quotient 6 as the next digit in the result. 
Result so far: 55636.0
If we subtract 1068 from 1081, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 8:
If we divide 130 by 178, we get 0 and a remainder of 130.
Use 0 as the next digit of our solution. 
Result so far: 55636.0
Subtracting 0 from 130 leaves us with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Advancing to step 9:
178 can be fit into 1300 7 times, resulting in a remainder of 54.
Write down 7 as next digit of the result. 
Result so far: 55636.07
Deduct 1246 from 1300 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 10:
178 can be fit into 540 3 times, resulting in a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 55636.073
Deduct 534 from 540 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 11:
If we divide 60 by 178, we get 0 and a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 55636.073
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 12:
The number 178 fits into 600 3 times, leaving a remainder of 66.
The next digit of our result is 3. 
Result so far: 55636.07303
If we take 534 away from 600, we end up with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 13:
660 divided by 178 is 3 with a remainder of 126.
The next digit of our result is 3. 
Result so far: 55636.073033
Subtract 534 from 660 to get 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

The final outcome is 55636.073033, with a leftover of 1.26e-05.