84691673 ÷ 864 
We want to figure out the number of times 84691673 can be divided by 864.

Going ahead to step 1:
If we divide 8 by 864, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (4) from the dividend, add it to 8, then carry on: 84 / 864

On to step 2:
The number 864 fits into 84 0 times, leaving a remainder of 84.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 84, we end up with 84.
Bring next digit (6) of the dividend behind the 84 and repeat the process: 846 / 864

Let's proceed to step 3:
If we divide 846 by 864, we get 0 and a remainder of 846.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 846 leaves us with 846.
Include the next digit (9) from the dividend after 846, then repeat: 8469 / 864

Moving on to step 4:
864 goes into 8469 9 times with a remainder of 693.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Deduct 7776 from 8469 and we're left with 693.
Grab the next digit (1) from the dividend, add it to 693, then carry on: 6931 / 864

On to step 5:
When dividing 6931 by 864, we get 8 with a remainder of 19.
Put 8 as the next digit of the answer. 
Result so far: 98.0
The remainder is 19 after subtracting 6912 from 6931.
Append the next digit (6) from the dividend to 19 and continue with: 196 / 864

On to step 6:
864 goes into 196 0 times with a remainder of 196.
Record the quotient 0 as the next digit in the result. 
Result so far: 980.0
If we subtract 0 from 196, we get 196.
Append the next digit (7) from the dividend to 196 and continue with: 1967 / 864

Step 7:
864 can be fit into 1967 2 times, resulting in a remainder of 239.
Record the quotient 2 as the next digit in the result. 
Result so far: 9802.0
Subtract 1728 from 1967 to get 239.
Fetch the next digit (3) from the dividend, attach it to 239 and continue: 2393 / 864

On to step 8:
If we divide 2393 by 864, we get 2 and a remainder of 665.
The number 2 becomes the next digit in our result. 
Result so far: 98022.0
Subtract 1728 from 2393 to get 665.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6650, and continue the process.

Moving on to step 9:
864 can be fit into 6650 7 times, resulting in a remainder of 602.
Use 7 as the next digit of our solution. 
Result so far: 98022.7
Subtracting 6048 from 6650 leaves us with 602.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6020, and continue the process.

Advancing to step 10:
6020 divided by 864 is 6 with a remainder of 836.
The next digit of our result is 6. 
Result so far: 98022.76
Subtracting 5184 from 6020 leaves us with 836.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8360, and continue the process.

Let's proceed to step 11:
If we divide 8360 by 864, we get 9 and a remainder of 584.
Write down 9 as next digit of the result. 
Result so far: 98022.769
If we subtract 7776 from 8360, we get 584.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5840, and continue the process.

Advancing to step 12:
864 can be fit into 5840 6 times, resulting in a remainder of 656.
Use 6 as the next digit of our solution. 
Result so far: 98022.7696
The remainder is 656 after subtracting 5184 from 5840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6560, and continue the process.

On to step 13:
864 can be fit into 6560 7 times, resulting in a remainder of 512.
Use 7 as the next digit of our solution. 
Result so far: 98022.76967
Subtracting 6048 from 6560 leaves us with 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Let's proceed to step 14:
5120 divided by 864 is 5 with a remainder of 800.
The next digit of our result is 5. 
Result so far: 98022.769675
Subtracting 4320 from 5120 leaves us with 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Going ahead to step 15:
If we divide 8000 by 864, we get 9 and a remainder of 224.
Use 9 as the next digit of our solution. 
Result so far: 98022.7696759
If we take 7776 away from 8000, we end up with 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Moving on to step 16:
864 can be fit into 2240 2 times, resulting in a remainder of 512.
Use 2 as the next digit of our solution. 
Result so far: 98022.76967592
Deduct 1728 from 2240 and we're left with 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

The final outcome is 98022.76967592, with a leftover of 5.12e-07.