43689429 divided by 84 
We want to divide 43689429 by 84.

Advancing to step 1:
84 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 84

On to step 2:
If we divide 43 by 84, we get 0 and a remainder of 43.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 43, we end up with 43.
Include the next digit (6) from the dividend after 43, then repeat: 436 / 84

Let's proceed to step 3:
84 can be fit into 436 5 times, resulting in a remainder of 16.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
The remainder is 16 after subtracting 420 from 436.
Take the next digit (8) from the dividend and append it to 16, then repeat: 168 / 84

On to step 4:
When dividing 168 by 84, we get 2 with a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 52.0
The remainder is 0 after subtracting 168 from 168.
Take the next digit (9) from the dividend and append it to 0, then repeat: 9 / 84

Moving on to step 5:
84 can be fit into 9 0 times, resulting in a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 520.0
If we subtract 0 from 9, we get 9.
Grab the next digit (4) from the dividend, add it to 9, then carry on: 94 / 84

Moving on to step 6:
If we divide 94 by 84, we get 1 and a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 5201.0
Deduct 84 from 94 and we're left with 10.
Take the next digit (2) from the dividend and append it to 10, then repeat: 102 / 84

Moving on to step 7:
84 goes into 102 1 times with a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 52011.0
If we subtract 84 from 102, we get 18.
Grab the next digit (9) from the dividend, add it to 18, then carry on: 189 / 84

Advancing to step 8:
84 can be fit into 189 2 times, resulting in a remainder of 21.
Put 2 as the next digit of the answer. 
Result so far: 520112.0
If we take 168 away from 189, we end up with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 9:
210 divided by 84 is 2 with a remainder of 42.
Write down 2 as next digit of the result. 
Result so far: 520112.2
If we take 168 away from 210, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 10:
420 divided by 84 is 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 520112.25
Deduct 420 from 420 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.

Step 11:
0 divided by 84 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 520112.25
Deduct 0 from 0 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 12:
84 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 520112.25
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 520112.25 and a remainder of 0.0.