86309993 ÷ 923 
We want to figure out the number of times 86309993 can be divided by 923.

Advancing to step 1:
When dividing 8 by 923, we get 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 923

Advancing to step 2:
If we divide 86 by 923, we get 0 and a remainder of 86.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Take the next digit (3) from the dividend and append it to 86, then repeat: 863 / 923

Advancing to step 3:
863 divided by 923 is 0 with a remainder of 863.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 863 after subtracting 0 from 863.
Fetch the next digit (0) from the dividend, attach it to 863 and continue: 8630 / 923

Going ahead to step 4:
When dividing 8630 by 923, we get 9 with a remainder of 323.
Use 9 as the next digit of our solution. 
Result so far: 9.0
If we subtract 8307 from 8630, we get 323.
Fetch the next digit (9) from the dividend, attach it to 323 and continue: 3239 / 923

Moving on to step 5:
The number 923 fits into 3239 3 times, leaving a remainder of 470.
The number 3 becomes the next digit in our result. 
Result so far: 93.0
Subtracting 2769 from 3239 leaves us with 470.
Append the next digit (9) from the dividend to 470 and continue with: 4709 / 923

Moving on to step 6:
4709 divided by 923 is 5 with a remainder of 94.
The number 5 becomes the next digit in our result. 
Result so far: 935.0
Subtracting 4615 from 4709 leaves us with 94.
Append the next digit (9) from the dividend to 94 and continue with: 949 / 923

Step 7:
923 can be fit into 949 1 times, resulting in a remainder of 26.
Record the quotient 1 as the next digit in the result. 
Result so far: 9351.0
If we subtract 923 from 949, we get 26.
Fetch the next digit (3) from the dividend, attach it to 26 and continue: 263 / 923

Moving on to step 8:
923 goes into 263 0 times with a remainder of 263.
The next digit of our result is 0. 
Result so far: 93510.0
Deduct 0 from 263 and we're left with 263.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2630, and continue the process.

On to step 9:
923 can be fit into 2630 2 times, resulting in a remainder of 784.
The next digit of our result is 2. 
Result so far: 93510.2
The remainder is 784 after subtracting 1846 from 2630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7840, and continue the process.

Moving on to step 10:
If we divide 7840 by 923, we get 8 and a remainder of 456.
The number 8 becomes the next digit in our result. 
Result so far: 93510.28
If we subtract 7384 from 7840, we get 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

Advancing to step 11:
The number 923 fits into 4560 4 times, leaving a remainder of 868.
Record the quotient 4 as the next digit in the result. 
Result so far: 93510.284
If we subtract 3692 from 4560, we get 868.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8680, and continue the process.

On to step 12:
The number 923 fits into 8680 9 times, leaving a remainder of 373.
Write down 9 as next digit of the result. 
Result so far: 93510.2849
Subtract 8307 from 8680 to get 373.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3730, and continue the process.

Going ahead to step 13:
923 goes into 3730 4 times with a remainder of 38.
Put 4 as the next digit of the answer. 
Result so far: 93510.28494
If we take 3692 away from 3730, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 14:
When dividing 380 by 923, we get 0 with a remainder of 380.
The number 0 becomes the next digit in our result. 
Result so far: 93510.28494
The remainder is 380 after subtracting 0 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Moving on to step 15:
When dividing 3800 by 923, we get 4 with a remainder of 108.
Record the quotient 4 as the next digit in the result. 
Result so far: 93510.2849404
Subtract 3692 from 3800 to get 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Step 16:
1080 divided by 923 is 1 with a remainder of 157.
Record the quotient 1 as the next digit in the result. 
Result so far: 93510.28494041
If we subtract 923 from 1080, we get 157.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1570, and continue the process.

The quotient of the division is 93510.28494041, and the remainder is 1.57e-07.