We look at the division of 351091 by 64 
We want to figure out the number of times 351091 can be divided by 64.

Let's proceed to step 1:
The number 64 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (5) from the dividend after 3, then repeat: 35 / 64

On to step 2:
64 can be fit into 35 0 times, resulting in a remainder of 35.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 35 to get 35.
Fetch the next digit (1) from the dividend, attach it to 35 and continue: 351 / 64

Step 3:
The number 64 fits into 351 5 times, leaving a remainder of 31.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtract 320 from 351 to get 31.
Bring next digit (0) of the dividend behind the 31 and repeat the process: 310 / 64

Moving on to step 4:
64 can be fit into 310 4 times, resulting in a remainder of 54.
Write down 4 as next digit of the result. 
Result so far: 54.0
Subtracting 256 from 310 leaves us with 54.
Fetch the next digit (9) from the dividend, attach it to 54 and continue: 549 / 64

Let's proceed to step 5:
When dividing 549 by 64, we get 8 with a remainder of 37.
The next digit of our result is 8. 
Result so far: 548.0
The remainder is 37 after subtracting 512 from 549.
Bring next digit (1) of the dividend behind the 37 and repeat the process: 371 / 64

On to step 6:
The number 64 fits into 371 5 times, leaving a remainder of 51.
The next digit of our result is 5. 
Result so far: 5485.0
If we subtract 320 from 371, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

On to step 7:
The number 64 fits into 510 7 times, leaving a remainder of 62.
Put 7 as the next digit of the answer. 
Result so far: 5485.7
If we take 448 away from 510, we end up with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 8:
64 goes into 620 9 times with a remainder of 44.
Use 9 as the next digit of our solution. 
Result so far: 5485.79
Subtracting 576 from 620 leaves us 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.

On to step 9:
The number 64 fits into 440 6 times, leaving a remainder of 56.
The number 6 becomes the next digit in our result. 
Result so far: 5485.796
If we take 384 away from 440, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Let's proceed to step 10:
When dividing 560 by 64, we get 8 with a remainder of 48.
Use 8 as the next digit of our solution. 
Result so far: 5485.7968
If we take 512 away from 560, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 11:
When dividing 480 by 64, we get 7 with a remainder of 32.
The next digit of our result is 7. 
Result so far: 5485.79687
The remainder is 32 after subtracting 448 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 12:
320 divided by 64 is 5 with a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 5485.796875
Deduct 320 from 320 and we're left 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.

On to step 13:
If we divide 0 by 64, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 5485.796875
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.

Step 14:
64 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 5485.796875
Subtract 0 from 0 to 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.

After the division, we end up with 5485.796875 and a remainder of 0.0.