91740486 ÷ 1 
We want to figure out the number of times 91740486 can be divided by 1.

On to step 1:
9 divided by 1 is 9 with a remainder of 0.
The next digit of our result is 9. 
Result so far: 9.0
If we subtract 9 from 9, we get 0.
Append the next digit (1) from the dividend to 0 and continue with: 1 / 1

Let's proceed to step 2:
The number 1 fits into 1 1 times, leaving a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 91.0
If we take 1 away from 1, we end up with 0.
Include the next digit (7) from the dividend after 0, then repeat: 7 / 1

Moving on to step 3:
The number 1 fits into 7 7 times, leaving a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 917.0
The remainder is 0 after subtracting 7 from 7.
Take the next digit (4) from the dividend and append it to 0, then repeat: 4 / 1

Going ahead to step 4:
1 can be fit into 4 4 times, resulting in a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 9174.0
Subtract 4 from 4 to get 0.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 1

Step 5:
When dividing 0 by 1, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 91740.0
If we subtract 0 from 0, we get 0.
Bring next digit (4) of the dividend behind the 0 and repeat the process: 4 / 1

On to step 6:
The number 1 fits into 4 4 times, leaving a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 917404.0
Deduct 4 from 4 and we're left with 0.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 8 / 1

Step 7:
If we divide 8 by 1, we get 8 and a remainder of 0.
Record the quotient 8 as the next digit in the result. 
Result so far: 9174048.0
Subtracting 8 from 8 leaves us with 0.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 1

Moving on to step 8:
If we divide 6 by 1, we get 6 and a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 91740486.0
If we subtract 6 from 6, 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 9:
If we divide 0 by 1, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 91740486.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 10:
If we divide 0 by 1, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 91740486.0
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 91740486.0 with a remaining 0.0.