21677217 divided by 451 
We're looking to find how many times 451 goes into 21677217.

Advancing to step 1:
When dividing 2 by 451, we get 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 451

Step 2:
When dividing 21 by 451, we get 0 with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Bring next digit (6) of the dividend behind the 21 and repeat the process: 216 / 451

Advancing to step 3:
451 goes into 216 0 times with a remainder of 216.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 216, we end up with 216.
Take the next digit (7) from the dividend and append it to 216, then repeat: 2167 / 451

Advancing to step 4:
451 goes into 2167 4 times with a remainder of 363.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Deduct 1804 from 2167 and we're left with 363.
Include the next digit (7) from the dividend after 363, then repeat: 3637 / 451

Going ahead to step 5:
The number 451 fits into 3637 8 times, leaving a remainder of 29.
Write down 8 as next digit of the result. 
Result so far: 48.0
The remainder is 29 after subtracting 3608 from 3637.
Grab the next digit (2) from the dividend, add it to 29, then carry on: 292 / 451

Advancing to step 6:
When dividing 292 by 451, we get 0 with a remainder of 292.
The next digit of our result is 0. 
Result so far: 480.0
Subtracting 0 from 292 leaves us with 292.
Fetch the next digit (1) from the dividend, attach it to 292 and continue: 2921 / 451

Advancing to step 7:
If we divide 2921 by 451, we get 6 and a remainder of 215.
Record the quotient 6 as the next digit in the result. 
Result so far: 4806.0
The remainder is 215 after subtracting 2706 from 2921.
Bring next digit (7) of the dividend behind the 215 and repeat the process: 2157 / 451

Step 8:
451 goes into 2157 4 times with a remainder of 353.
Record the quotient 4 as the next digit in the result. 
Result so far: 48064.0
Deduct 1804 from 2157 and we're left with 353.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3530, and continue the process.

Going ahead to step 9:
3530 divided by 451 is 7 with a remainder of 373.
Record the quotient 7 as the next digit in the result. 
Result so far: 48064.7
Subtracting 3157 from 3530 leaves us with 373.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3730, and continue the process.

Going ahead to step 10:
3730 divided by 451 is 8 with a remainder of 122.
Use 8 as the next digit of our solution. 
Result so far: 48064.78
If we take 3608 away from 3730, we end up with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Moving on to step 11:
When dividing 1220 by 451, we get 2 with a remainder of 318.
Use 2 as the next digit of our solution. 
Result so far: 48064.782
If we take 902 away from 1220, we end up with 318.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

Advancing to step 12:
451 goes into 3180 7 times with a remainder of 23.
Record the quotient 7 as the next digit in the result. 
Result so far: 48064.7827
Subtract 3157 from 3180 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 13:
451 goes into 230 0 times with a remainder of 230.
The number 0 becomes the next digit in our result. 
Result so far: 48064.7827
Subtract 0 from 230 to get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Let's proceed to step 14:
The number 451 fits into 2300 5 times, leaving a remainder of 45.
The next digit of our result is 5. 
Result so far: 48064.782705
Subtract 2255 from 2300 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Advancing to step 15:
450 divided by 451 is 0 with a remainder of 450.
Put 0 as the next digit of the answer. 
Result so far: 48064.782705
If we subtract 0 from 450, we get 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4500, and continue the process.

Moving on to step 16:
451 can be fit into 4500 9 times, resulting in a remainder of 441.
Use 9 as the next digit of our solution. 
Result so far: 48064.78270509
Subtract 4059 from 4500 to get 441.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4410, and continue the process.

The final outcome is 48064.78270509, with a leftover of 4.41e-07.