We divide 87018840 by 645
We want to figure out the number of times 87018840 can be divided by 645.

Let's proceed to step 1:
8 divided by 645 is 0 with 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.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 645

Let's proceed to step 2:
The number 645 fits into 87 0 times, leaving a remainder of 87.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 87 and we're left with 87.
Append the next digit (0) from the dividend to 87 and continue with: 870 / 645

Let's proceed to step 3:
645 can be fit into 870 1 times, resulting in a remainder of 225.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 225 after subtracting 645 from 870.
Grab the next digit (1) from the dividend, add it to 225, then carry on: 2251 / 645

Step 4:
If we divide 2251 by 645, we get 3 and a remainder of 316.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
The remainder is 316 after subtracting 1935 from 2251.
Fetch the next digit (8) from the dividend, attach it to 316 and continue: 3168 / 645

Moving on to step 5:
The number 645 fits into 3168 4 times, leaving a remainder of 588.
Record the quotient 4 as the next digit in the result. 
Result so far: 134.0
The remainder is 588 after subtracting 2580 from 3168.
Append the next digit (8) from the dividend to 588 and continue with: 5888 / 645

Step 6:
645 can be fit into 5888 9 times, resulting in a remainder of 83.
The number 9 becomes the next digit in our result. 
Result so far: 1349.0
If we subtract 5805 from 5888, we get 83.
Bring next digit (4) of the dividend behind the 83 and repeat the process: 834 / 645

Advancing to step 7:
645 can be fit into 834 1 times, resulting in a remainder of 189.
The next digit of our result is 1. 
Result so far: 13491.0
If we subtract 645 from 834, we get 189.
Bring next digit (0) of the dividend behind the 189 and repeat the process: 1890 / 645

Going ahead to step 8:
If we divide 1890 by 645, we get 2 and a remainder of 600.
Write down 2 as next digit of the result. 
Result so far: 134912.0
Subtracting 1290 from 1890 leaves us with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Step 9:
The number 645 fits into 6000 9 times, leaving a remainder of 195.
Put 9 as the next digit of the answer. 
Result so far: 134912.9
If we take 5805 away from 6000, we end up with 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Moving on to step 10:
The number 645 fits into 1950 3 times, leaving a remainder of 15.
The next digit of our result is 3. 
Result so far: 134912.93
The remainder is 15 after subtracting 1935 from 1950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 11:
645 can be fit into 150 0 times, resulting in a remainder of 150.
Use 0 as the next digit of our solution. 
Result so far: 134912.93
Deduct 0 from 150 and we're left with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Advancing to step 12:
1500 divided by 645 is 2 with a remainder of 210.
Record the quotient 2 as the next digit in the result. 
Result so far: 134912.9302
If we take 1290 away from 1500, we end up with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

On to step 13:
If we divide 2100 by 645, we get 3 and a remainder of 165.
The next digit of our result is 3. 
Result so far: 134912.93023
Subtract 1935 from 2100 to get 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Step 14:
If we divide 1650 by 645, we get 2 and a remainder of 360.
Use 2 as the next digit of our solution. 
Result so far: 134912.930232
Subtracting 1290 from 1650 leaves us with 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Step 15:
When dividing 3600 by 645, we get 5 with a remainder of 375.
Record the quotient 5 as the next digit in the result. 
Result so far: 134912.9302325
Subtracting 3225 from 3600 leaves us with 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

On to step 16:
3750 divided by 645 is 5 with a remainder of 525.
The number 5 becomes the next digit in our result. 
Result so far: 134912.93023255
The remainder is 525 after subtracting 3225 from 3750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5250, and continue the process.

The quotient of the division is 134912.93023255, and the remainder is 5.25e-07.