We look at the division of 27458411 by 644 
Let's see how many times 644 fits into 27458411.

Let's proceed to step 1:
2 divided by 644 is 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Append the next digit (7) from the dividend to 2 and continue with: 27 / 644

Moving on to step 2:
27 divided by 644 is 0 with a remainder of 27.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 27 to get 27.
Append the next digit (4) from the dividend to 27 and continue with: 274 / 644

Step 3:
When dividing 274 by 644, we get 0 with a remainder of 274.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 274 and we're left with 274.
Take the next digit (5) from the dividend and append it to 274, then repeat: 2745 / 644

Step 4:
If we divide 2745 by 644, we get 4 and a remainder of 169.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we take 2576 away from 2745, we end up with 169.
Append the next digit (8) from the dividend to 169 and continue with: 1698 / 644

On to step 5:
644 can be fit into 1698 2 times, resulting in a remainder of 410.
Record the quotient 2 as the next digit in the result. 
Result so far: 42.0
If we subtract 1288 from 1698, we get 410.
Include the next digit (4) from the dividend after 410, then repeat: 4104 / 644

Going ahead to step 6:
The number 644 fits into 4104 6 times, leaving a remainder of 240.
Use 6 as the next digit of our solution. 
Result so far: 426.0
If we subtract 3864 from 4104, we get 240.
Include the next digit (1) from the dividend after 240, then repeat: 2401 / 644

On to step 7:
The number 644 fits into 2401 3 times, leaving a remainder of 469.
Write down 3 as next digit of the result. 
Result so far: 4263.0
Subtracting 1932 from 2401 leaves us with 469.
Include the next digit (1) from the dividend after 469, then repeat: 4691 / 644

Advancing to step 8:
When dividing 4691 by 644, we get 7 with a remainder of 183.
Record the quotient 7 as the next digit in the result. 
Result so far: 42637.0
Subtract 4508 from 4691 to get 183.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1830, and continue the process.

Step 9:
If we divide 1830 by 644, we get 2 and a remainder of 542.
Put 2 as the next digit of the answer. 
Result so far: 42637.2
If we take 1288 away from 1830, we end up with 542.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5420, and continue the process.

Let's proceed to step 10:
644 goes into 5420 8 times with a remainder of 268.
Record the quotient 8 as the next digit in the result. 
Result so far: 42637.28
Subtract 5152 from 5420 to get 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

On to step 11:
2680 divided by 644 is 4 with a remainder of 104.
Record the quotient 4 as the next digit in the result. 
Result so far: 42637.284
If we take 2576 away from 2680, we end up with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Step 12:
The number 644 fits into 1040 1 times, leaving a remainder of 396.
The number 1 becomes the next digit in our result. 
Result so far: 42637.2841
If we take 644 away from 1040, we end up with 396.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3960, and continue the process.

Advancing to step 13:
The number 644 fits into 3960 6 times, leaving a remainder of 96.
The number 6 becomes the next digit in our result. 
Result so far: 42637.28416
If we take 3864 away from 3960, we end up with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Step 14:
644 goes into 960 1 times with a remainder of 316.
The next digit of our result is 1. 
Result so far: 42637.284161
If we subtract 644 from 960, we get 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Advancing to step 15:
If we divide 3160 by 644, we get 4 and a remainder of 584.
Record the quotient 4 as the next digit in the result. 
Result so far: 42637.2841614
Subtracting 2576 from 3160 leaves us with 584.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5840, and continue the process.

On to step 16:
The number 644 fits into 5840 9 times, leaving a remainder of 44.
The next digit of our result is 9. 
Result so far: 42637.28416149
Deduct 5796 from 5840 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

The quotient of the division is 42637.28416149, and the remainder is 4.4e-08.