We divide 897617 by 80
The aim is to understand the frequency of 80 in 897617.

Moving on to step 1:
8 divided by 80 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (9) from the dividend after 8, then repeat: 89 / 80

Advancing to step 2:
80 can be fit into 89 1 times, resulting in a remainder of 9.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 80 from 89 leaves us with 9.
Grab the next digit (7) from the dividend, add it to 9, then carry on: 97 / 80

Advancing to step 3:
When dividing 97 by 80, we get 1 with a remainder of 17.
Put 1 as the next digit of the answer. 
Result so far: 11.0
If we take 80 away from 97, we end up with 17.
Fetch the next digit (6) from the dividend, attach it to 17 and continue: 176 / 80

On to step 4:
If we divide 176 by 80, we get 2 and a remainder of 16.
Put 2 as the next digit of the answer. 
Result so far: 112.0
If we take 160 away from 176, we end up with 16.
Bring next digit (1) of the dividend behind the 16 and repeat the process: 161 / 80

Going ahead to step 5:
If we divide 161 by 80, we get 2 and a remainder of 1.
Put 2 as the next digit of the answer. 
Result so far: 1122.0
Subtract 160 from 161 to get 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 80

On to step 6:
When dividing 17 by 80, we get 0 with a remainder of 17.
Write down 0 as next digit of the result. 
Result so far: 11220.0
Deduct 0 from 17 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 7:
If we divide 170 by 80, we get 2 and a remainder of 10.
The next digit of our result is 2. 
Result so far: 11220.2
Subtract 160 from 170 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 8:
The number 80 fits into 100 1 times, leaving a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 11220.21
Deduct 80 from 100 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 9:
80 can be fit into 200 2 times, resulting in a remainder of 40.
Record the quotient 2 as the next digit in the result. 
Result so far: 11220.212
Subtracting 160 from 200 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 10:
The number 80 fits into 400 5 times, leaving a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 11220.2125
Deduct 400 from 400 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 11:
If we divide 0 by 80, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 11220.2125
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 12:
0 divided by 80 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 11220.2125
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 11220.2125 and a remainder of 0.0.