We're dividing 64407728 by 210 
We want to divide 64407728 by 210.

Moving on to step 1:
If we divide 6 by 210, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 210

Let's proceed to step 2:
If we divide 64 by 210, we get 0 and a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 64 leaves us with 64.
Include the next digit (4) from the dividend after 64, then repeat: 644 / 210

Advancing to step 3:
The number 210 fits into 644 3 times, leaving a remainder of 14.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
If we take 630 away from 644, we end up with 14.
Bring next digit (0) of the dividend behind the 14 and repeat the process: 140 / 210

Let's proceed to step 4:
If we divide 140 by 210, we get 0 and a remainder of 140.
Write down 0 as next digit of the result. 
Result so far: 30.0
If we take 0 away from 140, we end up with 140.
Include the next digit (7) from the dividend after 140, then repeat: 1407 / 210

Going ahead to step 5:
If we divide 1407 by 210, we get 6 and a remainder of 147.
The number 6 becomes the next digit in our result. 
Result so far: 306.0
Subtract 1260 from 1407 to get 147.
Take the next digit (7) from the dividend and append it to 147, then repeat: 1477 / 210

Going ahead to step 6:
When dividing 1477 by 210, we get 7 with a remainder of 7.
Write down 7 as next digit of the result. 
Result so far: 3067.0
Deduct 1470 from 1477 and we're left with 7.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 210

Moving on to step 7:
When dividing 72 by 210, we get 0 with a remainder of 72.
Use 0 as the next digit of our solution. 
Result so far: 30670.0
Subtract 0 from 72 to get 72.
Bring next digit (8) of the dividend behind the 72 and repeat the process: 728 / 210

Going ahead to step 8:
210 can be fit into 728 3 times, resulting in a remainder of 98.
The number 3 becomes the next digit in our result. 
Result so far: 306703.0
The remainder is 98 after subtracting 630 from 728.
Since there are no more digits in the dividend, we add a zero to the remainder making it 980, and continue the process.

Going ahead to step 9:
If we divide 980 by 210, we get 4 and a remainder of 140.
Write down 4 as next digit of the result. 
Result so far: 306703.4
The remainder is 140 after subtracting 840 from 980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Let's proceed to step 10:
210 can be fit into 1400 6 times, resulting in a remainder of 140.
Use 6 as the next digit of our solution. 
Result so far: 306703.46
If we subtract 1260 from 1400, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

On to step 11:
210 goes into 1400 6 times with a remainder of 140.
Use 6 as the next digit of our solution. 
Result so far: 306703.466
The remainder is 140 after subtracting 1260 from 1400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

The quotient of the division is 306703.466, and the remainder is 0.014.