We divide 87643642 by 18
Our goal is to divide 87643642 by 18.

Let's proceed to step 1:
The number 18 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 18

Advancing to step 2:
When dividing 87 by 18, we get 4 with a remainder of 15.
Put 4 as the next digit of the answer. 
Result so far: 4.0
The remainder is 15 after subtracting 72 from 87.
Fetch the next digit (6) from the dividend, attach it to 15 and continue: 156 / 18

Moving on to step 3:
When dividing 156 by 18, we get 8 with a remainder of 12.
Use 8 as the next digit of our solution. 
Result so far: 48.0
The remainder is 12 after subtracting 144 from 156.
Fetch the next digit (4) from the dividend, attach it to 12 and continue: 124 / 18

Let's proceed to step 4:
18 can be fit into 124 6 times, resulting in a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 486.0
Deduct 108 from 124 and we're left with 16.
Take the next digit (3) from the dividend and append it to 16, then repeat: 163 / 18

On to step 5:
When dividing 163 by 18, we get 9 with a remainder of 1.
The number 9 becomes the next digit in our result. 
Result so far: 4869.0
Subtracting 162 from 163 leaves us with 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 18

Moving on to step 6:
When dividing 16 by 18, we get 0 with a remainder of 16.
The number 0 becomes the next digit in our result. 
Result so far: 48690.0
Subtract 0 from 16 to get 16.
Append the next digit (4) from the dividend to 16 and continue with: 164 / 18

On to step 7:
164 divided by 18 is 9 with a remainder of 2.
Use 9 as the next digit of our solution. 
Result so far: 486909.0
If we take 162 away from 164, we end up with 2.
Bring next digit (2) of the dividend behind the 2 and repeat the process: 22 / 18

Moving on to step 8:
The number 18 fits into 22 1 times, leaving a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 4869091.0
Deduct 18 from 22 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 9:
18 goes into 40 2 times with a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 4869091.2
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 10:
The number 18 fits into 40 2 times, leaving a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 4869091.22
If we subtract 36 from 40, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 4869091.22 and a remainder of 0.004.