91231916 divided by 972 
We want to figure out the number of times 91231916 can be divided by 972.

Let's proceed to step 1:
The number 972 fits into 9 0 times, leaving a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 972

On to step 2:
If we divide 91 by 972, we get 0 and a remainder of 91.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 91 after subtracting 0 from 91.
Fetch the next digit (2) from the dividend, attach it to 91 and continue: 912 / 972

Going ahead to step 3:
When dividing 912 by 972, we get 0 with a remainder of 912.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 912, we get 912.
Fetch the next digit (3) from the dividend, attach it to 912 and continue: 9123 / 972

Advancing to step 4:
9123 divided by 972 is 9 with a remainder of 375.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we take 8748 away from 9123, we end up with 375.
Take the next digit (1) from the dividend and append it to 375, then repeat: 3751 / 972

Let's proceed to step 5:
972 goes into 3751 3 times with a remainder of 835.
The next digit of our result is 3. 
Result so far: 93.0
Deduct 2916 from 3751 and we're left with 835.
Take the next digit (9) from the dividend and append it to 835, then repeat: 8359 / 972

Advancing to step 6:
When dividing 8359 by 972, we get 8 with a remainder of 583.
Record the quotient 8 as the next digit in the result. 
Result so far: 938.0
If we subtract 7776 from 8359, we get 583.
Take the next digit (1) from the dividend and append it to 583, then repeat: 5831 / 972

On to step 7:
When dividing 5831 by 972, we get 5 with a remainder of 971.
Write down 5 as next digit of the result. 
Result so far: 9385.0
Subtract 4860 from 5831 to get 971.
Fetch the next digit (6) from the dividend, attach it to 971 and continue: 9716 / 972

On to step 8:
972 goes into 9716 9 times with a remainder of 968.
Write down 9 as next digit of the result. 
Result so far: 93859.0
If we take 8748 away from 9716, we end up with 968.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9680, and continue the process.

Step 9:
If we divide 9680 by 972, we get 9 and a remainder of 932.
Write down 9 as next digit of the result. 
Result so far: 93859.9
The remainder is 932 after subtracting 8748 from 9680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9320, and continue the process.

On to step 10:
The number 972 fits into 9320 9 times, leaving a remainder of 572.
Put 9 as the next digit of the answer. 
Result so far: 93859.99
Deduct 8748 from 9320 and we're left with 572.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5720, and continue the process.

The quotient of the division is 93859.99, and the remainder is 0.572.