We're dividing 17045218 by 420 
We're looking to find how many times 420 goes into 17045218.

Advancing to step 1:
420 can be fit into 1 0 times, resulting in a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 420

Step 2:
The number 420 fits into 17 0 times, leaving a remainder of 17.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 17 after subtracting 0 from 17.
Take the next digit (0) from the dividend and append it to 17, then repeat: 170 / 420

Advancing to step 3:
The number 420 fits into 170 0 times, leaving a remainder of 170.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 170, we end up with 170.
Bring next digit (4) of the dividend behind the 170 and repeat the process: 1704 / 420

Let's proceed to step 4:
1704 divided by 420 is 4 with a remainder of 24.
The next digit of our result is 4. 
Result so far: 4.0
Subtract 1680 from 1704 to get 24.
Append the next digit (5) from the dividend to 24 and continue with: 245 / 420

Let's proceed to step 5:
The number 420 fits into 245 0 times, leaving a remainder of 245.
The next digit of our result is 0. 
Result so far: 40.0
If we take 0 away from 245, we end up with 245.
Grab the next digit (2) from the dividend, add it to 245, then carry on: 2452 / 420

Moving on to step 6:
If we divide 2452 by 420, we get 5 and a remainder of 352.
Record the quotient 5 as the next digit in the result. 
Result so far: 405.0
The remainder is 352 after subtracting 2100 from 2452.
Bring next digit (1) of the dividend behind the 352 and repeat the process: 3521 / 420

Let's proceed to step 7:
420 can be fit into 3521 8 times, resulting in a remainder of 161.
Put 8 as the next digit of the answer. 
Result so far: 4058.0
Subtracting 3360 from 3521 leaves us with 161.
Take the next digit (8) from the dividend and append it to 161, then repeat: 1618 / 420

Advancing to step 8:
420 can be fit into 1618 3 times, resulting in a remainder of 358.
Put 3 as the next digit of the answer. 
Result so far: 40583.0
If we take 1260 away from 1618, we end up with 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

Advancing to step 9:
When dividing 3580 by 420, we get 8 with a remainder of 220.
Put 8 as the next digit of the answer. 
Result so far: 40583.8
If we subtract 3360 from 3580, we get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Moving on to step 10:
420 can be fit into 2200 5 times, resulting in a remainder of 100.
Use 5 as the next digit of our solution. 
Result so far: 40583.85
If we subtract 2100 from 2200, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Moving on to step 11:
The number 420 fits into 1000 2 times, leaving a remainder of 160.
Record the quotient 2 as the next digit in the result. 
Result so far: 40583.852
Subtract 840 from 1000 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

On to step 12:
The number 420 fits into 1600 3 times, leaving a remainder of 340.
The number 3 becomes the next digit in our result. 
Result so far: 40583.8523
If we take 1260 away from 1600, we end up with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Step 13:
If we divide 3400 by 420, we get 8 and a remainder of 40.
Record the quotient 8 as the next digit in the result. 
Result so far: 40583.85238
If we subtract 3360 from 3400, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 14:
400 divided by 420 is 0 with a remainder of 400.
The number 0 becomes the next digit in our result. 
Result so far: 40583.85238
Subtracting 0 from 400 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Going ahead to step 15:
420 can be fit into 4000 9 times, resulting in a remainder of 220.
The next digit of our result is 9. 
Result so far: 40583.8523809
If we take 3780 away from 4000, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

On to step 16:
2200 divided by 420 is 5 with a remainder of 100.
Use 5 as the next digit of our solution. 
Result so far: 40583.85238095
If we subtract 2100 from 2200, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

The final outcome is 40583.85238095, with a leftover of 1e-07.