Let's divide 89212443 by 80
We want to figure out the number of times 89212443 can be divided by 80.

Step 1:
If we divide 8 by 80, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 80

On to step 2:
89 divided by 80 is 1 with 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.
Fetch the next digit (2) from the dividend, attach it to 9 and continue: 92 / 80

Step 3:
When dividing 92 by 80, we get 1 with a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 11.0
Subtract 80 from 92 to get 12.
Include the next digit (1) from the dividend after 12, then repeat: 121 / 80

Going ahead to step 4:
80 goes into 121 1 times with a remainder of 41.
Use 1 as the next digit of our solution. 
Result so far: 111.0
Subtracting 80 from 121 leaves us with 41.
Append the next digit (2) from the dividend to 41 and continue with: 412 / 80

Step 5:
80 can be fit into 412 5 times, resulting in a remainder of 12.
Put 5 as the next digit of the answer. 
Result so far: 1115.0
Subtract 400 from 412 to get 12.
Include the next digit (4) from the dividend after 12, then repeat: 124 / 80

Advancing to step 6:
80 goes into 124 1 times with a remainder of 44.
The number 1 becomes the next digit in our result. 
Result so far: 11151.0
Subtract 80 from 124 to get 44.
Append the next digit (4) from the dividend to 44 and continue with: 444 / 80

Moving on to step 7:
When dividing 444 by 80, we get 5 with a remainder of 44.
The number 5 becomes the next digit in our result. 
Result so far: 111515.0
If we take 400 away from 444, we end up with 44.
Grab the next digit (3) from the dividend, add it to 44, then carry on: 443 / 80

Going ahead to step 8:
When dividing 443 by 80, we get 5 with a remainder of 43.
The next digit of our result is 5. 
Result so far: 1115155.0
Subtract 400 from 443 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Moving on to step 9:
The number 80 fits into 430 5 times, leaving a remainder of 30.
The next digit of our result is 5. 
Result so far: 1115155.5
Subtracting 400 from 430 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 10:
When dividing 300 by 80, we get 3 with a remainder of 60.
Put 3 as the next digit of the answer. 
Result so far: 1115155.53
The remainder is 60 after subtracting 240 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 11:
600 divided by 80 is 7 with a remainder of 40.
Write down 7 as next digit of the result. 
Result so far: 1115155.537
Subtracting 560 from 600 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.

Moving on to step 12:
When dividing 400 by 80, we get 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 1115155.5375
If we take 400 away from 400, 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.

Going ahead to step 13:
80 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1115155.5375
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.

On to step 14:
80 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1115155.5375
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.

Our division results in 1115155.5375 with a remaining 0.0.