91245748 divided by 210 
Our goal is to divide 91245748 by 210.

Moving on to step 1:
210 can be fit into 9 0 times, resulting in a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 210

Going ahead to step 2:
If we divide 91 by 210, we get 0 and a remainder of 91.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 91, we end up with 91.
Append the next digit (2) from the dividend to 91 and continue with: 912 / 210

Step 3:
210 goes into 912 4 times with a remainder of 72.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtracting 840 from 912 leaves us with 72.
Take the next digit (4) from the dividend and append it to 72, then repeat: 724 / 210

Step 4:
210 goes into 724 3 times with a remainder of 94.
Record the quotient 3 as the next digit in the result. 
Result so far: 43.0
Deduct 630 from 724 and we're left with 94.
Bring next digit (5) of the dividend behind the 94 and repeat the process: 945 / 210

Advancing to step 5:
210 goes into 945 4 times with a remainder of 105.
Record the quotient 4 as the next digit in the result. 
Result so far: 434.0
Deduct 840 from 945 and we're left with 105.
Append the next digit (7) from the dividend to 105 and continue with: 1057 / 210

On to step 6:
210 goes into 1057 5 times with a remainder of 7.
Use 5 as the next digit of our solution. 
Result so far: 4345.0
Subtract 1050 from 1057 to get 7.
Bring next digit (4) of the dividend behind the 7 and repeat the process: 74 / 210

Going ahead to step 7:
When dividing 74 by 210, we get 0 with a remainder of 74.
The number 0 becomes the next digit in our result. 
Result so far: 43450.0
If we take 0 away from 74, we end up with 74.
Grab the next digit (8) from the dividend, add it to 74, then carry on: 748 / 210

Moving on to step 8:
748 divided by 210 is 3 with a remainder of 118.
Put 3 as the next digit of the answer. 
Result so far: 434503.0
Subtracting 630 from 748 leaves us with 118.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1180, and continue the process.

Let's proceed to step 9:
1180 divided by 210 is 5 with a remainder of 130.
Record the quotient 5 as the next digit in the result. 
Result so far: 434503.5
If we subtract 1050 from 1180, we get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Let's proceed to step 10:
The number 210 fits into 1300 6 times, leaving a remainder of 40.
Record the quotient 6 as the next digit in the result. 
Result so far: 434503.56
The remainder is 40 after subtracting 1260 from 1300.
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 11:
210 can be fit into 400 1 times, resulting in a remainder of 190.
Record the quotient 1 as the next digit in the result. 
Result so far: 434503.561
Subtracting 210 from 400 leaves us with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Step 12:
210 can be fit into 1900 9 times, resulting in a remainder of 10.
Record the quotient 9 as the next digit in the result. 
Result so far: 434503.5619
Deduct 1890 from 1900 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 13:
210 can be fit into 100 0 times, resulting in a remainder of 100.
The number 0 becomes the next digit in our result. 
Result so far: 434503.5619
If we take 0 away from 100, we end up 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.

Let's proceed to step 14:
210 can be fit into 1000 4 times, resulting in a remainder of 160.
The next digit of our result is 4. 
Result so far: 434503.561904
If we take 840 away from 1000, we end up with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Let's proceed to step 15:
If we divide 1600 by 210, we get 7 and a remainder of 130.
The number 7 becomes the next digit in our result. 
Result so far: 434503.5619047
The remainder is 130 after subtracting 1470 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Step 16:
When dividing 1300 by 210, we get 6 with a remainder of 40.
The next digit of our result is 6. 
Result so far: 434503.56190476
Deduct 1260 from 1300 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

In conclusion, the division gives 434503.56190476 with a balance of 4e-08.