We look at the division of 9193353 by 870 
The aim is to understand the frequency of 870 in 9193353.

Step 1:
If we divide 9 by 870, we get 0 and a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 870

Let's proceed to step 2:
The number 870 fits into 91 0 times, leaving a remainder of 91.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 91 leaves us with 91.
Append the next digit (9) from the dividend to 91 and continue with: 919 / 870

Moving on to step 3:
When dividing 919 by 870, we get 1 with a remainder of 49.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 49 after subtracting 870 from 919.
Include the next digit (3) from the dividend after 49, then repeat: 493 / 870

On to step 4:
493 divided by 870 is 0 with a remainder of 493.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtract 0 from 493 to get 493.
Include the next digit (3) from the dividend after 493, then repeat: 4933 / 870

On to step 5:
The number 870 fits into 4933 5 times, leaving a remainder of 583.
The next digit of our result is 5. 
Result so far: 105.0
The remainder is 583 after subtracting 4350 from 4933.
Bring next digit (5) of the dividend behind the 583 and repeat the process: 5835 / 870

Advancing to step 6:
870 goes into 5835 6 times with a remainder of 615.
Record the quotient 6 as the next digit in the result. 
Result so far: 1056.0
The remainder is 615 after subtracting 5220 from 5835.
Append the next digit (3) from the dividend to 615 and continue with: 6153 / 870

Let's proceed to step 7:
When dividing 6153 by 870, we get 7 with a remainder of 63.
Put 7 as the next digit of the answer. 
Result so far: 10567.0
Deduct 6090 from 6153 and we're left with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Step 8:
870 can be fit into 630 0 times, resulting in a remainder of 630.
The next digit of our result is 0. 
Result so far: 10567.0
Subtract 0 from 630 to get 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

On to step 9:
When dividing 6300 by 870, we get 7 with a remainder of 210.
Write down 7 as next digit of the result. 
Result so far: 10567.07
The remainder is 210 after subtracting 6090 from 6300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Moving on to step 10:
When dividing 2100 by 870, we get 2 with a remainder of 360.
Record the quotient 2 as the next digit in the result. 
Result so far: 10567.072
The remainder is 360 after subtracting 1740 from 2100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Advancing to step 11:
3600 divided by 870 is 4 with a remainder of 120.
The next digit of our result is 4. 
Result so far: 10567.0724
Subtract 3480 from 3600 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Let's proceed to step 12:
The number 870 fits into 1200 1 times, leaving a remainder of 330.
The number 1 becomes the next digit in our result. 
Result so far: 10567.07241
If we take 870 away from 1200, we end up with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Advancing to step 13:
870 goes into 3300 3 times with a remainder of 690.
Write down 3 as next digit of the result. 
Result so far: 10567.072413
Deduct 2610 from 3300 and we're left with 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6900, and continue the process.

On to step 14:
If we divide 6900 by 870, we get 7 and a remainder of 810.
Write down 7 as next digit of the result. 
Result so far: 10567.0724137
Subtracting 6090 from 6900 leaves us with 810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8100, and continue the process.

Going ahead to step 15:
When dividing 8100 by 870, we get 9 with a remainder of 270.
The next digit of our result is 9. 
Result so far: 10567.07241379
Deduct 7830 from 8100 and we're left with 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

After the division, we end up with 10567.07241379 and a remainder of 2.7e-07.