We look at the division of 64107 by 51 
We want to figure out the number of times 64107 can be divided by 51.

Step 1:
51 goes into 6 0 times with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 51

Going ahead to step 2:
51 can be fit into 64 1 times, resulting in a remainder of 13.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 51 from 64 to get 13.
Take the next digit (1) from the dividend and append it to 13, then repeat: 131 / 51

Going ahead to step 3:
If we divide 131 by 51, we get 2 and a remainder of 29.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtract 102 from 131 to get 29.
Take the next digit (0) from the dividend and append it to 29, then repeat: 290 / 51

Step 4:
The number 51 fits into 290 5 times, leaving a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 125.0
The remainder is 35 after subtracting 255 from 290.
Take the next digit (7) from the dividend and append it to 35, then repeat: 357 / 51

Moving on to step 5:
51 goes into 357 7 times with a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 1257.0
If we subtract 357 from 357, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 6:
When dividing 0 by 51, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 1257.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 7:
The number 51 fits into 0 0 times, leaving a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1257.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 1257.0, with a leftover of 0.0.