21758007 divided by 651 
We want to figure out the number of times 21758007 can be divided by 651.

On to step 1:
2 divided by 651 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 651

Advancing to step 2:
651 goes into 21 0 times with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Bring next digit (7) of the dividend behind the 21 and repeat the process: 217 / 651

Step 3:
The number 651 fits into 217 0 times, leaving a remainder of 217.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 217, we end up with 217.
Include the next digit (5) from the dividend after 217, then repeat: 2175 / 651

On to step 4:
The number 651 fits into 2175 3 times, leaving a remainder of 222.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 1953 from 2175 leaves us with 222.
Append the next digit (8) from the dividend to 222 and continue with: 2228 / 651

Advancing to step 5:
If we divide 2228 by 651, we get 3 and a remainder of 275.
Use 3 as the next digit of our solution. 
Result so far: 33.0
If we subtract 1953 from 2228, we get 275.
Append the next digit (0) from the dividend to 275 and continue with: 2750 / 651

On to step 6:
651 can be fit into 2750 4 times, resulting in a remainder of 146.
Write down 4 as next digit of the result. 
Result so far: 334.0
Deduct 2604 from 2750 and we're left with 146.
Append the next digit (0) from the dividend to 146 and continue with: 1460 / 651

Step 7:
When dividing 1460 by 651, we get 2 with a remainder of 158.
The next digit of our result is 2. 
Result so far: 3342.0
If we subtract 1302 from 1460, we get 158.
Include the next digit (7) from the dividend after 158, then repeat: 1587 / 651

Step 8:
If we divide 1587 by 651, we get 2 and a remainder of 285.
The number 2 becomes the next digit in our result. 
Result so far: 33422.0
Deduct 1302 from 1587 and we're left with 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

Going ahead to step 9:
When dividing 2850 by 651, we get 4 with a remainder of 246.
Put 4 as the next digit of the answer. 
Result so far: 33422.4
Subtracting 2604 from 2850 leaves us with 246.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2460, and continue the process.

Going ahead to step 10:
When dividing 2460 by 651, we get 3 with a remainder of 507.
The next digit of our result is 3. 
Result so far: 33422.43
Subtract 1953 from 2460 to get 507.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5070, and continue the process.

Moving on to step 11:
The number 651 fits into 5070 7 times, leaving a remainder of 513.
The next digit of our result is 7. 
Result so far: 33422.437
If we subtract 4557 from 5070, we get 513.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5130, and continue the process.

Advancing to step 12:
If we divide 5130 by 651, we get 7 and a remainder of 573.
Record the quotient 7 as the next digit in the result. 
Result so far: 33422.4377
Deduct 4557 from 5130 and we're left with 573.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5730, and continue the process.

The final result is 33422.4377 with a remainder of 0.00573.