We divide 644534 by 87
We want to figure out the number of times 644534 can be divided by 87.

On to step 1:
6 divided by 87 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 87

Moving on to step 2:
When dividing 64 by 87, we get 0 with a remainder of 64.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 64 after subtracting 0 from 64.
Append the next digit (4) from the dividend to 64 and continue with: 644 / 87

Let's proceed to step 3:
The number 87 fits into 644 7 times, leaving a remainder of 35.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Deduct 609 from 644 and we're left with 35.
Take the next digit (5) from the dividend and append it to 35, then repeat: 355 / 87

Let's proceed to step 4:
When dividing 355 by 87, we get 4 with a remainder of 7.
Write down 4 as next digit of the result. 
Result so far: 74.0
If we take 348 away from 355, we end up with 7.
Include the next digit (3) from the dividend after 7, then repeat: 73 / 87

Step 5:
87 can be fit into 73 0 times, resulting in a remainder of 73.
Write down 0 as next digit of the result. 
Result so far: 740.0
The remainder is 73 after subtracting 0 from 73.
Take the next digit (4) from the dividend and append it to 73, then repeat: 734 / 87

On to step 6:
When dividing 734 by 87, we get 8 with a remainder of 38.
Use 8 as the next digit of our solution. 
Result so far: 7408.0
The remainder is 38 after subtracting 696 from 734.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 7:
When dividing 380 by 87, we get 4 with a remainder of 32.
Write down 4 as next digit of the result. 
Result so far: 7408.4
The remainder is 32 after subtracting 348 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 8:
When dividing 320 by 87, we get 3 with a remainder of 59.
Record the quotient 3 as the next digit in the result. 
Result so far: 7408.43
Deduct 261 from 320 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Advancing to step 9:
If we divide 590 by 87, we get 6 and a remainder of 68.
The number 6 becomes the next digit in our result. 
Result so far: 7408.436
Subtract 522 from 590 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 10:
87 can be fit into 680 7 times, resulting in a remainder of 71.
Use 7 as the next digit of our solution. 
Result so far: 7408.4367
The remainder is 71 after subtracting 609 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

On to step 11:
87 goes into 710 8 times with a remainder of 14.
Put 8 as the next digit of the answer. 
Result so far: 7408.43678
If we subtract 696 from 710, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 12:
87 can be fit into 140 1 times, resulting in a remainder of 53.
The number 1 becomes the next digit in our result. 
Result so far: 7408.436781
Subtracting 87 from 140 leaves us with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Going ahead to step 13:
87 can be fit into 530 6 times, resulting in a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 7408.4367816
Deduct 522 from 530 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 14:
The number 87 fits into 80 0 times, leaving a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 7408.4367816
The remainder is 80 after subtracting 0 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The final result is 7408.4367816 with a remainder of 8e-08.