18416961 ÷ 80 
We want to divide 18416961 by 80.

Step 1:
80 goes into 1 0 times with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 80

Step 2:
If we divide 18 by 80, we get 0 and a remainder of 18.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 18, we end up with 18.
Include the next digit (4) from the dividend after 18, then repeat: 184 / 80

Step 3:
When dividing 184 by 80, we get 2 with a remainder of 24.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 160 from 184 leaves us with 24.
Grab the next digit (1) from the dividend, add it to 24, then carry on: 241 / 80

On to step 4:
241 divided by 80 is 3 with a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 23.0
If we subtract 240 from 241, we get 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 80

Let's proceed to step 5:
When dividing 16 by 80, we get 0 with a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 230.0
If we subtract 0 from 16, we get 16.
Fetch the next digit (9) from the dividend, attach it to 16 and continue: 169 / 80

Going ahead to step 6:
80 goes into 169 2 times with a remainder of 9.
The next digit of our result is 2. 
Result so far: 2302.0
Subtract 160 from 169 to get 9.
Grab the next digit (6) from the dividend, add it to 9, then carry on: 96 / 80

Moving on to step 7:
80 goes into 96 1 times with a remainder of 16.
Put 1 as the next digit of the answer. 
Result so far: 23021.0
Deduct 80 from 96 and we're left with 16.
Bring next digit (1) of the dividend behind the 16 and repeat the process: 161 / 80

Going ahead to step 8:
80 goes into 161 2 times with a remainder of 1.
The next digit of our result is 2. 
Result so far: 230212.0
The remainder is 1 after subtracting 160 from 161.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 9:
The number 80 fits into 10 0 times, leaving a remainder of 10.
The next digit of our result is 0. 
Result so far: 230212.0
Subtract 0 from 10 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.

On to step 10:
If we divide 100 by 80, we get 1 and a remainder of 20.
Use 1 as the next digit of our solution. 
Result so far: 230212.01
Subtracting 80 from 100 leaves us 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.

Step 11:
The number 80 fits into 200 2 times, leaving a remainder of 40.
Use 2 as the next digit of our solution. 
Result so far: 230212.012
Deduct 160 from 200 and we're left 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 12:
The number 80 fits into 400 5 times, leaving a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 230212.0125
If we subtract 400 from 400, we 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.

On to step 13:
0 divided by 80 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 230212.0125
Deduct 0 from 0 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.

Let's proceed to step 14:
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: 230212.0125
Deduct 0 from 0 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.

After the division, we end up with 230212.0125 and a remainder of 0.0.