Let's divide 45769321 by 420
Our goal is to divide 45769321 by 420.

On to step 1:
4 divided by 420 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Take the next digit (5) from the dividend and append it to 4, then repeat: 45 / 420

Going ahead to step 2:
420 can be fit into 45 0 times, resulting in a remainder of 45.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 45 and we're left with 45.
Include the next digit (7) from the dividend after 45, then repeat: 457 / 420

Advancing to step 3:
The number 420 fits into 457 1 times, leaving a remainder of 37.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 420 away from 457, we end up with 37.
Include the next digit (6) from the dividend after 37, then repeat: 376 / 420

Advancing to step 4:
420 can be fit into 376 0 times, resulting in a remainder of 376.
Write down 0 as next digit of the result. 
Result so far: 10.0
The remainder is 376 after subtracting 0 from 376.
Bring next digit (9) of the dividend behind the 376 and repeat the process: 3769 / 420

Step 5:
3769 divided by 420 is 8 with a remainder of 409.
The next digit of our result is 8. 
Result so far: 108.0
Subtracting 3360 from 3769 leaves us with 409.
Grab the next digit (3) from the dividend, add it to 409, then carry on: 4093 / 420

Going ahead to step 6:
The number 420 fits into 4093 9 times, leaving a remainder of 313.
Record the quotient 9 as the next digit in the result. 
Result so far: 1089.0
Subtract 3780 from 4093 to get 313.
Append the next digit (2) from the dividend to 313 and continue with: 3132 / 420

Step 7:
The number 420 fits into 3132 7 times, leaving a remainder of 192.
Use 7 as the next digit of our solution. 
Result so far: 10897.0
If we take 2940 away from 3132, we end up with 192.
Take the next digit (1) from the dividend and append it to 192, then repeat: 1921 / 420

Advancing to step 8:
1921 divided by 420 is 4 with a remainder of 241.
Use 4 as the next digit of our solution. 
Result so far: 108974.0
Subtracting 1680 from 1921 leaves us with 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

On to step 9:
If we divide 2410 by 420, we get 5 and a remainder of 310.
Put 5 as the next digit of the answer. 
Result so far: 108974.5
If we subtract 2100 from 2410, we get 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Let's proceed to step 10:
The number 420 fits into 3100 7 times, leaving a remainder of 160.
Put 7 as the next digit of the answer. 
Result so far: 108974.57
Subtract 2940 from 3100 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.

Moving on to step 11:
420 goes into 1600 3 times with a remainder of 340.
The number 3 becomes the next digit in our result. 
Result so far: 108974.573
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.

Moving on to step 12:
The number 420 fits into 3400 8 times, leaving a remainder of 40.
The next digit of our result is 8. 
Result so far: 108974.5738
The remainder is 40 after subtracting 3360 from 3400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 13:
The number 420 fits into 400 0 times, leaving a remainder of 400.
The next digit of our result is 0. 
Result so far: 108974.5738
Deduct 0 from 400 and we're left 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.

On to step 14:
If we divide 4000 by 420, we get 9 and a remainder of 220.
Record the quotient 9 as the next digit in the result. 
Result so far: 108974.573809
Deduct 3780 from 4000 and we're left 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.

Step 15:
The number 420 fits into 2200 5 times, leaving a remainder of 100.
Write down 5 as next digit of the result. 
Result so far: 108974.5738095
Subtracting 2100 from 2200 leaves us with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Step 16:
420 goes into 1000 2 times with a remainder of 160.
Record the quotient 2 as the next digit in the result. 
Result so far: 108974.57380952
If we subtract 840 from 1000, we 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.

The quotient of the division is 108974.57380952, and the remainder is 1.6e-07.