We're dividing 80391694 by 485 
We want to figure out the number of times 80391694 can be divided by 485.

On to step 1:
8 divided by 485 is 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 485

On to step 2:
485 can be fit into 80 0 times, resulting in a remainder of 80.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 80, we end up with 80.
Append the next digit (3) from the dividend to 80 and continue with: 803 / 485

Moving on to step 3:
When dividing 803 by 485, we get 1 with a remainder of 318.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 485 from 803 leaves us with 318.
Grab the next digit (9) from the dividend, add it to 318, then carry on: 3189 / 485

Moving on to step 4:
3189 divided by 485 is 6 with a remainder of 279.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
If we take 2910 away from 3189, we end up with 279.
Fetch the next digit (1) from the dividend, attach it to 279 and continue: 2791 / 485

Moving on to step 5:
When dividing 2791 by 485, we get 5 with a remainder of 366.
Put 5 as the next digit of the answer. 
Result so far: 165.0
Subtracting 2425 from 2791 leaves us with 366.
Include the next digit (6) from the dividend after 366, then repeat: 3666 / 485

Moving on to step 6:
485 can be fit into 3666 7 times, resulting in a remainder of 271.
The number 7 becomes the next digit in our result. 
Result so far: 1657.0
If we take 3395 away from 3666, we end up with 271.
Append the next digit (9) from the dividend to 271 and continue with: 2719 / 485

Advancing to step 7:
485 can be fit into 2719 5 times, resulting in a remainder of 294.
Use 5 as the next digit of our solution. 
Result so far: 16575.0
The remainder is 294 after subtracting 2425 from 2719.
Take the next digit (4) from the dividend and append it to 294, then repeat: 2944 / 485

Moving on to step 8:
When dividing 2944 by 485, we get 6 with a remainder of 34.
Write down 6 as next digit of the result. 
Result so far: 165756.0
If we subtract 2910 from 2944, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 9:
The number 485 fits into 340 0 times, leaving a remainder of 340.
Write down 0 as next digit of the result. 
Result so far: 165756.0
If we subtract 0 from 340, we get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Let's proceed to step 10:
The number 485 fits into 3400 7 times, leaving a remainder of 5.
Use 7 as the next digit of our solution. 
Result so far: 165756.07
If we subtract 3395 from 3400, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 11:
The number 485 fits into 50 0 times, leaving a remainder of 50.
Record the quotient 0 as the next digit in the result. 
Result so far: 165756.07
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 12:
When dividing 500 by 485, we get 1 with a remainder of 15.
Record the quotient 1 as the next digit in the result. 
Result so far: 165756.0701
The remainder is 15 after subtracting 485 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 13:
485 can be fit into 150 0 times, resulting in a remainder of 150.
The number 0 becomes the next digit in our result. 
Result so far: 165756.0701
The remainder is 150 after subtracting 0 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Going ahead to step 14:
485 can be fit into 1500 3 times, resulting in a remainder of 45.
Use 3 as the next digit of our solution. 
Result so far: 165756.070103
Subtracting 1455 from 1500 leaves us with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 15:
If we divide 450 by 485, we get 0 and a remainder of 450.
Record the quotient 0 as the next digit in the result. 
Result so far: 165756.070103
The remainder is 450 after subtracting 0 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Step 16:
4500 divided by 485 is 9 with a remainder of 135.
Use 9 as the next digit of our solution. 
Result so far: 165756.07010309
Subtracting 4365 from 4500 leaves us with 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1350, and continue the process.

After the division, we end up with 165756.07010309 and a remainder of 1.35e-07.